The probability of a daughter cell having only the maternal chromosomes from that initial cell is 1/16
What is meiosis?In meiosis, the diploid cell undergoes two rounds of cell division, resulting in four haploid daughter cells.
During meiosis I, homologous chromosomes pair up and exchange genetic material through crossing-over. This means that it is unlikely for the daughter cell to have only the maternal chromosomes, as there is a high probability that at least one crossover event has occurred.
Since there are four pairs of homologous chromosomes, the probability of a daughter cell receiving only maternal chromosomes from all four pairs is:
1/2 x 1/2 x 1/2 x 1/2 = 1/16
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Question 27 of 30
Which statement provides the best description of the relationship between
primary consumers and producers?
OA. Primary consumers provide producers with the chemical energy
they need.
OB. Primary consumers eat secondary consumers, which rely on
producers for food.
OC. Producers provide primary consumers with the chemical energy
they need.
OD. Producers and primary consumers compete with each other for
food sources.
The correct choice is:
OC. Producers provide primary consumers with the chemical energy
they need.
Primary consumers (e.g. herbivores) eat producers (e.g. plants) and gain their chemical
energy from the producers. The other choices do not accurately describe this producer-primary
consumer relationship.
OA. Primary consumers do not provide producers with chemical energy.
Producers provide chemical energy to primary consumers through photosynthesis.
OB. Primary consumers do not eat secondary consumers. Secondary
consumers eat primary consumers.
OD. Producers and primary consumers do not compete for the same
food sources. They occupy different trophic levels in the food chain.
Producers are the base of the food chain and primary consumers feed on them.
So the key relationship is that producers provide primary consumers
with chemical energy by being the base of the food chain and serving
as the primary food source for herbivores.
Phylogenetic tree
Method of analysis used
Most distantly related species
The method of analysis used to create a phylogenetic tree may be DNA or RNA analysis from different organisms.
The most distantly related species on a phylogenetic tree are located are furthest apart from each other.
What is a phylogenetic tree?A phylogenetic tree is a branching diagram or tree that depicts the relationships that have developed over time between different biological species or other entities based on the similarities and variances in their genetic or physical traits.
One evolutionary tree represents all life on Earth and shows their shared ancestry.
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Determine the surface area-to-volume ratio of the four L. lactis groups. Identify the group with the greatest surface area-to-volume ratio and explain what this largest ratio means with respect to galactose breakdown.
Answer:
Without more information about the specific L. lactis groups being referred to, I cannot provide a definitive answer to this question. However, in general, the surface area-to-volume ratio of a cell can be calculated as follows:
Surface area-to-volume ratio = Surface area / Volume
The surface area of a cell is important because it determines the amount of nutrients and waste that can pass in and out of the cell. The volume of a cell is important because it determines the amount of metabolic activity that can occur within the cell.
In general, cells with a high surface area-to-volume ratio are more efficient at exchanging nutrients and waste, because they have a larger surface area relative to their volume. This is particularly important for cells that require a lot of nutrients to function, such as cells that are actively breaking down galactose.
If one of the L. lactis groups has a particularly high surface area-to-volume ratio, this could indicate that the cells in that group are particularly efficient at exchanging nutrients and waste, and thus may be more effective at breaking down galactose. However, other factors such as enzyme activity and gene expression could also play a role in determining how effectively the cells are able to break down galactose.
Mammals have fur, they suckle their young and the young develop inside the mother. is it True or False
Answer:
True
Explanation:
This statement is true.
Mammals are defined by several characteristics, including the presence of fur or hair, the production of milk by the mother to nourish their young (which is known as lactation), and the development of the offspring within the mother's body before birth.
Hope this helps!
Researchers studied how getting too little sleep affects the human immune
system. Which of these is a control variable?
A. The immune system response
B. Both getting too little sleep and the immune system response
C. Neither getting too little sleep nor the immune system response
D. Getting too little sleep
Answer:
the answer is "c"
explanation
control variables are any thing that are held constant or limited in a research study. it is a variable that is not of interest to study objectives, but is controlled because it could influence the out comes. so in the research above we need to study the influence of getting too little sleep on human immune. in other word getting too little sleep is independent variable which may have an effect on dependent variable human immune. also human immune response is a value we have to measure to decide whether the independent variable affect the result or not. control variables for the above research are like the food the experimental group and the standard group eat, the bed the in which the experiment is done and so on.
I really need help with Biology 102 ASAP!!!! but it's due date: Apr 17, 2023 at 11:59 PM EDT
Question 9
Just click on a pics
Answer: Type 1 diabetes mellitus:
About 10% of diabetics have this type
A person does not produce enough insulin
Treated with insulin injections
Can lead to coma and death as built up ketones are converted to acids
Usually begins in childhood or adolescence
Long-term complications include blindness and cardiovascular disorders
Type 2 diabetes mellitus:
Most diabetics have this type
Cannot properly use produced insulin
Affects a person's ability to regulate glucose metabolism
Often develops in overweight or obese people
Long-term complications include blindness and cardiovascular disorders
Explanation: hope it helps
Type 1 Diabetes Mellitus:
About 10% of diabetes have this type
Can lead to coma and death as built up ketones are converted to acids
Cannot properly use produced insulin
Usually develops in childhood
Type 2 Diabetes Mellitus:
Most diabetes have this type
Often develops in overweight/obese people
Affects a person's ability to regulate glucose metabolism
Long-term complications include blindness and cardiovascular disorder.
Both:
A person does not produce enough insulin
Treated with insulin injections
Part C: Take Notes In a separate location, take notes from the sources you have identified. The notes will provide details for your paper. While taking notes from texts and websites, use these reading strategies. In the space provided, write four pieces of information that you intend to use in your paper.
Four reading strategies that you can apply in your paperwork will include questioning, retelling, drawing inferences, and prediction.
How to apply the strategiesTo apply the strategies, you need to question what you read. This means not accepting everything that is said but questioning its validity. Also, you can retell the messages from the text and draw inferences from what is read.
The prediction will help you stay involved while taking notes. The pieces of information that you intend to use in your paper should be relevant to the topic of discussion.
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The state of Louisiana contains vast amounts of fossil fuels that are harvested and used for energy. Louisiana ranked in the top ten states in the U.S. for the production of both crude oil and natural gas in 2015. During that same year, Louisiana residents used the most energy per person compared to residents of other states in the U.S.
Based on this information, why might the distribution of the fossil fuels change in Louisiana?
A. Fossil fuels are an unlimited resource, and they will eventually increase in Louisiana because of increased production.
B. Fossil fuels are an unlimited resource, and they will eventually run out in Louisiana due to larger supplies in other states.
C. Fossil fuels are a limited resource, and they will eventually run out in Louisiana because of rapid human use.
D. Fossil fuels are a limited resource, and they will eventually increase in Louisiana because they are replaced quickly.
C. Fossil fuels are a limited resource, and they will eventually run out in Louisiana because of rapid human use.
What is limited resource?A limited resource is any natural or man-made resource that is available in a limited quantity. Limited resources can be either renewable or non-renewable. Examples of renewable limited resources include water, forests, arable land, and energy from renewable sources such as solar, wind, and geothermal. Examples of non-renewable limited resources include mineral and fossil fuels such as coal and oil. Limited resources are essential for the production of goods and services, and the continued functioning of the global economy.
Louisiana's high level of energy use per person compared to other states indicates that the fossil fuels in the state may be used up at a faster rate than other states. This would cause the distribution of fossil fuels in Louisiana to decrease over time.
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Which of the following would most likely be a result of converting from solar power as the primary energy source for a home to biomass-produced methane?
A) Greenhouse gas emissions would decrease.
B) More time would be required for maintenance.
C) Power generation would be less consistent.
D) Waste in landfills would be less.
Answer:a
Explanation:it is the BASIC of all greenhouse which mean that if there was less energy source then there will be a lower amount on greenhouse gases
Most likely, switching from solar energy as a home's principal energy source to methane produced from biomass would reduce greenhouse gas emissions. Option A is correct Option.
Which method can speed up the release of greenhouse gases into the atmosphere?Human activity is responsible for majority past 150 years' increase in greenhouse gases in the atmosphere. In the United States, burning fossil fuels for power is the main cause of greenhouse gas emissions resulting from human activity.
What types of human activity cause the emissions of greenhouse gases?Fossil fuel combustion, forest clearing, and livestock grazing all have an increasing effect on the planet's climate and temperature. As a result, the number of greenhouse gases in the atmosphere grows significantly, aggravating the greenhouse effect and global warming.
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If the age of Layer 4 is 400 million years and the age of Layer 1 is 500 million years, then the age of Layer 5 is
If the age of Layer 4 is 400 million years and the age of Layer 1 is 500 million years, then the age of Layer 5 is younger than 400 million years.
The numerical ages of rock which are present on the Earth, in the Geologic Time Scale, are basically determined by the technique of radiometric dating, which basically uses the process which is known as the radioactive decay.
Since the age of the layer 1 amongst the rock layers is found to be 500 million years and that of layer 4 is found to be 400 million years then the age of the layer 5, which is the layer present above the layer 4 will have an age which is younger or lesser than 400 million years.
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Our brain enables us to do all the following except blank a think b socialize c talk d move
Answer: B-socialize
Explanation:
the brain is only there for certain thing that deals with the human body all together, but socializing is your choice your brain dosent force you to do that .
1. padding at a full speed is putting new demands on a Joe's body. what are these new demands and how does the body respond to them?
2. what changes in Joe's muscles promote unloading of oxygen from hemoglobin for use by the muscle cells when paddling?
3. what conflict is produced between Joe's need to keep his body cool and his need to remove his nitrogenous waste from his blood? what did he do before the race to help alleviate this conflict?
4. Joe stopped paddling and his muscles are at rest. why are his heart and breathing rates still so high?
5. why is he sweating more after the race than during the race?
6. what changes have occurred in his blood chemistry since the start of the race?
Answer:
1. When paddling at full speed, Joe's body demands an increased supply of oxygen to fuel the working muscles. The body responds by increasing the heart rate and breathing rate to deliver more oxygen to the muscles. The body also needs to regulate its temperature, which increases as a result of the energy expended during paddling. This puts a demand on the body to cool down through sweating and increased blood flow to the skin.
2. During paddling, Joe's muscles undergo changes that promote unloading of oxygen from hemoglobin for use by the muscle cells. These changes include an increase in temperature, acidity, and levels of carbon dioxide. These changes cause hemoglobin to release oxygen more readily, allowing the working muscles to extract more oxygen from the blood.
3. Joe's need to keep his body cool conflicts with his need to remove his nitrogenous waste from his blood. Nitrogenous waste, such as urea, is produced by the breakdown of proteins in the muscles and needs to be removed from the blood by the kidneys. Sweating helps to cool the body down but also removes water from the body, which can make it harder for the kidneys to filter nitrogenous waste. Before the race, Joe may have increased his water intake to help alleviate this conflict and ensure proper kidney function.
4. Even when Joe's muscles are at rest, his heart and breathing rates remain high because his body is still working to recover from the intense exercise. The increased heart rate helps to deliver oxygen and nutrients to the muscles, while the increased breathing rate helps to remove carbon dioxide and other waste products from the body.
5. Joe is sweating more after the race than during the race because his body is still trying to cool down and regulate its temperature. The increased sweating helps to remove excess heat from the body, which was generated during the intense exercise.
6. Several changes have occurred in Joe's blood chemistry since the start of the race. These include an increase in levels of lactate and carbon dioxide, which are waste products produced by the muscles during intense exercise. There may also be a decrease in pH levels due to the build-up of acid in the blood. Additionally, Joe's blood glucose levels may have decreased as a result of the energy used during the race.
Explanation:
Which Law best applies to REDOX (reduction and oxidation) reactions?
The law of conservation of mass and charge applies to redox reactions that involve the transfer of electrons between chemical species.
Thus, redox reactions are reduction and oxidation reactions that involve the transfer of electrons between chemical species, and the law of conservation of mass states that the mass of the products must be equal to the mass of the reactants.
This law conservation of mass applies to redox reactions as in these reactions, the total number of atoms of each element is conserved as electrons are transferred between the reactants and products.
The law of conservation of charge ensures that the total charge on the reactants and products is balanced as this law ensures that the number of atoms and charges are conserved during the transfer of electrons in redox reactions.
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The cellular machinery use theses instructions to a string of corresponding amino acids
The order of nucleotides in a gene contains the instructions utilized by the cellular machinery to link together corresponding amino acids. Genes are sections of DNA that contain information needed to create proteins. The genetic code determines the order of nucleotides in a gene, which in turn specifies the order of amino acids in a protein.
The genetic code is a collection of guidelines that specify how amino acids and nucleotide triplets (codons) match together. The ribosome, a component of the cellular machinery in charge of protein synthesis, translates a messenger RNA (mRNA) molecule's codon sequence into a corresponding sequence of amino acids during protein synthesis. This procedure entails the binding of particular transfer RNA (tRNA) molecules to the codons on the messenger RNA (mRNA), each of which carries an individual amino acid that is appropriate for the codon.
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The order of nucleotides in a gene contains the instructions utilized by the cellular machinery to link together corresponding amino acids. Genes are sections of DNA that contain information needed to create proteins. The genetic code determines the order of nucleotides in a gene, which in turn specifies the order of amino acids in a protein.
The genetic code is a collection of guidelines that specify how amino acids and nucleotide triplets (codons) match together. The ribosome, a component of the cellular machinery in charge of protein synthesis, translates a messenger RNA (mRNA) molecule's codon sequence into a corresponding sequence of amino acids during protein synthesis. This procedure entails the binding of particular transfer RNA (tRNA) molecules to the codons on the messenger RNA (mRNA), each of which carries an individual amino acid that is appropriate for the codon.
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Someone help me it's due today!
Filling out the table below using terms that describe gene and how to remember them are displayed below.
How to define genetic terms?Term | Definition | How will you remember?
Homozygous | Both alleles for a gene are identical | PP or pp
Heterozygous | Two different alleles for a gene | Pp
Phenotype | Physical expression of traits | What you see
Genotype | Genetic makeup of an organism | Letters that represent the alleles
Allele | Alternative forms of a gene | Letters that represent the versions of a gene
Dominant | An allele that is expressed when present | Represented by a capital letter (e.g. P)
Recessive | An allele that is only expressed in the absence of a dominant allele | Represented by a lowercase letter (e.g. p)
Table I.
TRAIT | YOUR PHENOTYPE | YOUR GENOTYPE(S)
Darwin's Ear Point | have | Pp
Hitchhiker's Thumb | Can bend more than 90 degrees | hh or Hh
Widow's Peak | Curved hairline | WW or Ww
Second Finger Shorter Than Fourth | Yes | Ss
Mid-digital Hair | Have hair | Hh or hh
Tongue Rolling | Can roll tongue | Rr or RR
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Instructions: Develop a one-day diet plan for Kelly. She is a sedentary, 21-year-old lacto-
ovo-vegetarian who is 5'7 and weighs 155 pounds.. Use Cronometer as a tool to plan and
enter her diet. You may save a recorded one-day diet in this tool. Start off by recognizing her
protein requirement. Create a one-day menu plan (breakfast, lunch, dinner, and snacks) for
her. Each meal or snack must include protein. List two nutrients she might fall short in a
vegetarian diet, and list ways to replace those nutrients. As you are planning her diet, be sure
to meet 100 percent of protein, calcium, zinc, and iron needs.
Answer: As a sedentary, 21-year-old lacto-ovo-vegetarian weighing 155 pounds and standing at 5'7, Kelly needs approximately 56 grams of protein per day. It is important to note that vegetarians may fall short in certain nutrients, such as vitamin B12 and omega-3 fatty acids. To ensure that Kelly is meeting her nutritional needs, the following one-day diet plan has been developed using Cronometer as a tool:
Breakfast:
1 cup of oatmeal made with 1 cup of almond milk and 1 sliced banana (10g protein)
1 boiled egg (6g protein)
Mid-morning snack:
1 small apple (0.5g protein)
1 tablespoon of peanut butter (3.5g protein)
Lunch:
2 slices of whole wheat bread (8g protein)
2 tablespoons of hummus (2g protein)
1 cup of mixed greens (1g protein)
1 cup of cherry tomatoes (1g protein)
1/2 cup of edamame (11g protein)
Afternoon snack:
1 cup of Greek yogurt (17g protein)
1/4 cup of almonds (6g protein)
Dinner:
1 cup of quinoa (8g protein)
1 cup of roasted sweet potato (2g protein)
1/2 cup of chickpeas (6g protein)
1 cup of steamed broccoli (3g protein)
1/2 cup of sliced mushrooms (1g protein)
Total protein intake for the day: 65g
To ensure that Kelly is meeting her nutritional needs, it is important to note that vegetarians may fall short in certain nutrients, such as vitamin B12 and omega-3 fatty acids. To replace these nutrients, Kelly can consume fortified foods such as cereals, soy milk, and nutritional yeast for vitamin B12 and flaxseeds, chia seeds, and walnuts for omega-3 fatty acids.
Overall, Kelly's one-day diet plan includes a variety of plant-based protein sources such as oats, quinoa, edamame, and chickpeas. By using Cronometer as a tool, her diet plan meets 100 percent of her protein, calcium, zinc, and iron needs while also accounting for potential nutrient deficiencies in a vegetarian diet.
show the base pairing that results in new strands of dna
Answer:
The rules of base pairing (or nucleotide pairing) are:
A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T)
C with G: the pyrimidine cytosine (C) always pairs with the purine guanine (G)
Which statement about the functioning of the human reproductive system is correct?
Answer: The process of fertilization occurs inside the human female body is the correct statement about the functioning of the human reproductive system.
Explanation: The human reproductive system includes the male reproductive system and the female reproductive sysytem. the external genital organs of both male and female are different in their nature, appearance and internal as well as external functioning. The male and female sexual organs, fluids are all different from each other.
The male reproductive system is responsible for the production and deposition of sperm. Whereas, the female reproductive system is responsible in producing egg cells, and to nourish and protect the fetus until birth.
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Explain how lymph nodes work. Explain what happens to the pathogens or foreign substance that enter a lymph node in the lymph
Why is it important to look at environmental solutions from different perspectives?
I really need help with Biology 102 ASAP!!!! but it's due date: Apr 26, 2023 at 11:59 PM EDT
Question 9 parts 1, 2 and 3
About 90 percent of the population is affected by type-2 diabetes while only 10 percent of the population gets type-1 diabetes. Both types can be managed using insulin.
In type-1 diabetes, the pancreatic cells are attacked, so a person can’t produce enough insulin. Ten percent of diabetics have this type of diabetes. It can be treated with insulin injections. People with this type have a greater risk of coma and death due to ketoacidosis or hypoglycemia.
In type-2 diabetes, insulin produced cannot be used properly. Most diabetics suffer from type. It can be managed through insulin or through exercise and diet.
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19. What's the main sugar that's transported in your blood and used to produce energy?
A. Glucose
B. Fructose
C. Sucrose
D. Maltose
Answer: A. Glucose
Explanation:
Glucose is a simple sugar, also known as a monosaccharide, that is produced by the digestion of carbohydrates in the foods we eat. It is then absorbed into the bloodstream and transported to the cells throughout the body to provide energy for various cellular processes. Glucose is the primary fuel source for the brain, muscles, and other organs in the body.
Peahens prefer to mate with peacocks that have the brightest and largest tail displays. The peacock’s tail is a disadvantage to the males, because it is large and cumbersome and hinders them from escaping from predators. Given these facts, why isn’t the peacock’s tail selected against by natural selection?
The peacock's tail is a classic example of sexual selection.
A type of natural selection in which traits are selected because they increase an individual's reproductive success, rather than because they increase their survival or ability to avoid predators.
While the peacock's tail may be a disadvantage in terms of survival and avoiding predators, it is a major advantage in attracting mates. Peahens prefer peacocks with larger, more colorful tails, and those males are more likely to mate and pass on their genes to the next generation. Therefore, the benefits of having a large, colorful tail outweigh the costs, and the trait persists in the population due to sexual selection.
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2. What did the Watson and Crick double helix model of DNA structure
explain about this molecule.
The Watson and Crick double helix model of DNA structure, proposed in 1953, provided a breakthrough understanding of the molecular structure of DNA, which has profound implications for our understanding of genetics, heredity, and molecular biology.
What is DNA structure?The model explained several key features of DNA:
Double helix structure: The model proposed that DNA consists of two strands that are twisted around each other in a helical fashion, forming a double helix structure. The two strands are held together by hydrogen bonds between complementary nucleotide bases (adenine with thymine, and guanine with cytosine), forming base pairs along the interior of the helix. This explained how DNA can have a stable and structural integrity, while also allowing for the replication and transcription of genetic information.
Complementary base pairing: The model explained how the nucleotide bases in DNA (adenine, thymine, guanine, and cytosine) pair specifically with their complementary bases to form the "rungs" of the DNA ladder. This complementary base pairing mechanism ensures that the genetic information stored in DNA is accurately replicated and transmitted during cell division and protein synthesis.
Antiparallel orientation: The model revealed that the two strands of DNA in the double helix are oriented in an antiparallel manner, meaning they run in opposite directions. This orientation allows for the formation of hydrogen bonds between the complementary base pairs, and it has important implications for DNA replication and transcription processes.
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Deforestation in the Amazon affects the ____ through increased flooding, ocean warming, more tropical cyclones and more pollution
Deforestation in the Amazon affects the global climate through increased flooding, ocean warming, more tropical cyclones, and more pollution.
What is deforestation?Deforestation, which involves the removal of trees and other vegetation, results in the release of carbon dioxide into the atmosphere and reduces the amount of oxygen produced by the forest. This contributes to global warming and climate change.
Moreover, the Amazon rainforest plays a crucial role in the water cycle and helps to regulate regional and global weather patterns. Deforestation disrupts the water cycle, causing increased flooding in some areas and droughts in others. This can lead to severe consequences, such as soil erosion, loss of biodiversity, and displacement of indigenous communities.
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How are Jim White and Charles David Keeling connected
Charles David Keeling and his colleagues Jim White are connected as they began measuring CO2 in 1958, which enabled us to have an excellent record of how CO2 concentrations have changed in the atmosphere over time.
Who is Charles David Keeling?Charles David Keeling was an American scientist whose recording of carbon dioxide at the Mauna Loa Observatory confirmed Svante Arrhenius's proposition of the possibility of anthropogenic contribution to the greenhouse effect and global warming, by documenting the steadily rising carbon dioxide levels.
Charles David Keeling measured CO2 in by having several 5-L flasks constructed with vacuum stopcocks and measured the volumes of the flasks from the mass they contained when filled with water.
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(d) a species of intertidal plant has thick shiny leaves that reflect sunlight make a claim about which area of the intertidal zone this plant is best adapted to live in
Based on the description of the plant having thick, shiny leaves that reflect sunlight, it can be inferred that this plant is best adapted to live in the upper intertidal zone.
Where is the plant foundThe upper intertidal zone is the area that is exposed to air and sunlight during low tide and is submerged during high tide. Plants that live in this area are exposed to high levels of sunlight and heat, as well as desiccation (drying out) during low tide. Therefore, plants in this zone need to be adapted to withstand these harsh conditions.
The thick, shiny leaves of the plant described would help to reflect sunlight and reduce the amount of heat absorbed by the plant, which can help prevent overheating and damage from the sun. Additionally, the thickness of the leaves could help reduce water loss during low tide when the plant is exposed to air and is at risk of desiccation.
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give reason The Weight is dependent upon the mass of a body at a given place.
Weight is the force exerted on an object due to gravity and is dependent upon the mass of the object and the gravitational force at a given place.
Thus, the gravitational force is proportional to the mass of the object, and the gravitational acceleration is a constant value determined by the mass of the Earth and the distance between the object and the center of Earth.
Therefore, the weight of an object at a given place depends on its mass because the gravitational force is directly proportional to its mass. A heavy object will experience a greater gravitational force than a less massive object when placed at the same location.
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Which of the following characteristics or properties are SIMILAR between
RNA Transcription and DNA Replication? Select ALL that apply.
Using complementary base pairing to a DNA template
The use of polymerases that add nucleotides in a 5' to 3' direction
Occurs in the nucleus
Copying of both a leading strand and lagging strand
Uses the base pair C-G
Uses the base pair A-U
The requirement that helicase unwinds double-stranded DNA
The use of DNA polymerase
Answer:
The correct characteristics or properties that are SIMILAR between RNA Transcription and DNA Replication are:
Using complementary base pairing to a DNA template
The use of polymerases that add nucleotides in a 5' to 3' direction
The requirement that helicase unwinds double-stranded DNA
The use of DNA polymerase
So, the correct options are:
Using complementary base pairing to a DNA template
The use of polymerases that add nucleotides in a 5' to 3' direction
The requirement that helicase unwinds double-stranded DNA
The use of DNA polymerase
Answer:
The correct characteristics or properties that are SIMILAR between RNA Transcription and DNA Replication are:
Using complementary base pairing to a DNA template
The use of polymerases that add nucleotides in a 5' to 3' direction
The requirement that helicase unwinds double-stranded DNA
The use of DNA polymerase
So, the correct options are:
Using complementary base pairing to a DNA template
The use of polymerases that add nucleotides in a 5' to 3' direction
The requirement that helicase unwinds double-stranded DNA
The use of DNA polymerase
The diagrams below represent rock layers found in two different locations by two different scientists. The scientist at location X used letters to label his rock layers, while the scientist at location Y used roman numerals to label her layers. Examine these diagrams and then answer the question that follows.The scientists both used the same colors and patterns to represent different types of rocks. They also used the same set of black-and-white symbols to represent specific types of fossils in the layers. By correlating layers based on fossils and rock types, the two scientists have discovered that certain rock layers are present in both locations.
Based on this information, if the age of layer R is 260 million years, then what other layer likely also has an age of 260 million years?
Answer:
Layers P,Q,R and S are the same as IV, V, VI and VII
Explanation:
Because of how the layers are being formed.
For more information ask your teacher or look in textbooks