Answer:
B
Explanation:
where is the oesophagus locate
here's your answer..
Answer:
The esophagus runs behind the windpipe (trachea) and heart, and in front of the spine. Just before entering the stomach, the esophagus passes through the diaphragm. The upper esophageal sphincter (UES) is a bundle of muscles at the top of the esophagus.1
Explanation:
i am sure it will help you
URGENT PLEASE HELP
Rashid is conducting a seminar on the importance of coral reefs. Which point should he include?
A. that corals can be picked from the sea and sold
B. that corals are poisonous and can be used for pest control
C. that corals have a hard exoskeleton that can be used for construction of buildings
D. that corals are impervious to damage
E. that corals provide economic assistance to coastal populations through fisheries
Answer:
lo
Explanation:
help me in 10 11 12, please
sorry sorry sorry sorry
4. Eukaryotic DNA is shaped like a
a. nucleotide.
b. X in a circle.
c. double helix.
d. covalent bond.
Answer:
The answer is a double helix
long necked giraffes are dominant to short necks , the giraffe is heterozygous
what is his genotype?
what is his phenotype?
let's say were representing neck length with L,
the genotype of a heterozygous giraffe would be Ll
the phenotype, or physical appearance would be long neck
A frog has more offspring than can survive on available resources.
Which is this an example?
structural adaptation
overpopulation
variation in a population
artificial selection
A frog that has more offspring than can survive on available resources is an example of overpopulation.
WHAT IS OVERPOPULATION?Overpopulation is a process whereby there are more individuals of a population than the available resources.
According to this question, a frog has more offsprings than can survive on available resources. This means that there are more frogs than resources.
Therefore, frog that has more offspring than can survive on available resources is an example of overpopulation.
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Which type of energy do the compounds in the food we eat contain?
chemical energy
electromagnetic energy
kinetic energy
thermal energy
Answer:
Chemical Energy
Explanation:
Chemical energy is simply energy that is stored in compounds or elements, specifically in the atomic bonds that connect atoms and molecules. In food, it's a form of potential energy because it's stored away.
Which of these is the energy-carrying particle that
enables muscle contraction?
ОАТР
O water
O oxygen
O sarcolemma
When we breathe in and out normally during rest, this is called “quiet” inspiration (and expiration). It is also called tidal volume, as it refers to the “tides”. How much air (the volume) do we typically breathe in or out during quiet breathing (in ml...you will have to convert from Liters to Milliliters)?
Answer: the amount of air that normally enters the lungs during quiet breathing, which is about 500 milliliters.
Explanation:
Why does the skeleton stop growing in length?
a
Because the cartilage in the growth plate has been
replaced by bone.
b
Because there is not enough calcium and other
nutrients in the body.
Because the growth plates stop working
d Because the bones reach their maximum length
Answer:
Bones increase in length because of growth plates in the bones called epiphyses. As puberty progresses, the growth plates mature, and at the end of puberty they fuse and stop growing. ... After the growth plates fuse, there is no more increase in height, and we all then shrink gradually as we get older.
project of science.
Explain the parts and their function of the brain ?
Explanation:
The human brain has following main parts:
1. Cerebrum:
It is also called big brain.
It is the centre of intelligence, memory, imagination and emotions.
It is responsible for ordinary senses.
Injury in cerebrum causes coma .
2. Medulla oblongata:
It is the lower most part of the brain.
It receive and integrates signals from spinal cords and sends resulting impulses to the cerebrum and cerebellum.
3. Cerebellum:
It is called as Small brain.
It makes body movement smooth and steady.
It maintains equilibrium and controls the body posture.
I need help with this gizmo
A possible hypothesis for this situation is that tank 1 contains denitrifying bacteria, tank 2 contains nitrite nitrifying bacteria, and tank 3 contains ammonia nitrifying bacteria.
What is a hypothesis?A hypothesis, which is a common term used in experiments refers to a possible explanation for the results or phenomenon observed. In this case, a hypothesis needs to focus on the type of bacteria that are present in each of the tanks.
This means that to write a hypothesis we need to relate the type of bacteria to each of the tanks.
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Answer the following question in the attached image. Thank you
need help with this please
Answer:
Nucleic Acid
Explanation:
Have a good day :)
A geneticist wants to determine what mutation in a DNA molecule changed the structure of a specific protein. What would the scientist need to know before planning the investigation?
The normal sequence of bases that code for the protein
Whether the mutation was a substitution, insertion, or deletion
The total number of bases in the DNA molecule
How many thymine bases are in the DNA molecule
A mutation is any change in the sequence of DNA because of any reason such as deletion, insertion, etc. To determine the mutation in a DNA molecule changed the structure of a specific protein scientists should know the normal sequence of bases that code for the protein.
What is mutation?A mutation is a random change in the DNA sequence either due to insertion, deletion, or substitution.
By mutating a gene's code for making a protein, a variant can leads to a protein's improper functioning or to not being produced at all.
Scientists must mandatorily determine the normal base sequence of the protein code before investigating the mutation in the DNA sequence for a particular protein.
Thus, the correct option is A.
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Which of the following is the best resource to help you learn about the appearance, habitats, and behaviors of birds in your area?
Photography books
Field guides
Microbiology textbook
TV shows
Answer:
Field guides
Explanation:
Various species of plants and nimals exists some of which bears very similar resemblance but for some key differences which may be unknown to learners or observers. A field guide gives a description of plants and animals, stating key physical differences between similar plants and animals. This helps learners distinguish between the related organisms. Field guides are most useful when applied to habitats where a range of similar organisms have been spotted and the field guide is then taken to such habitat to physically identify each different plant or animal.
Answer:
Field Guides
Explanation:
What is true about Anemia? *
1. Disorder of platelets
2. uncontrolled production of WBCs
3. Increase in number of RBCs
4. Abnormal production of chain of Hemoglobin
Answer: 4. Abnormal production of chain of Hemoglobin
Explanation:
Anemia is a condition where the cells in the body do not get enough oxygen because the red blood cells needed to transport them are either too little or are dysfunctional.
One way the red blood cells can be dysfunctional is when they have an abnormal type of hemoglobin. Hemoglobin is necessary in red blood cells to enable to transportation of oxygen and if it is dysfunctional, oxygen will have problems being transported which would lead to anemia.
What is the greatest threat humans pose to biodiversity?
Answer:
habitat loss, over-harvesting, and introduction of exotic species
Explanation:
The way that people have altered natural environments to create room for farms or to collect natural resources has posed the greatest harm to biodiversity yet, but as climate change intensifies, it will have a rising influence on ecosystems.
What is biodiversity loss?The term "biodiversity loss" describes the decline in biodiversity brought on by the extinction or relocating of species. Some people might not consider the extinction of a certain species to be significant, especially if it is not a charismatic species such as the Bengal tiger or the humpback dolphin.
However, according to estimates from scientists, the present pace of species extinctions is several times higher than the background, or average, rate seen throughout Earth's history. Within our lifetimes, this amounts to the extinction of tens of thousands of species.
The breakdown of ecosystems is anticipated to have drastic repercussions on human welfare. Because of the intricate relationships between species, a loss of biodiversity may have a ripple effect on ecosystems.
One species' extinction, for instance, may result in the extermination of another. Scientists evaluate which species are in danger of extinction as well as the state of the ecosystems to gauge the loss of biodiversity.
Therefore, the way that people have altered natural environments to create room for farms or to collect natural resources has posed the greatest harm to biodiversity yet, but as climate change intensifies, it will have a rising influence on ecosystems.
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HLPE ME FAST PLSSSSS NEED HELP PROBS WILL GIVE BRAINLY
Answer:
28. Transverse (all electromagnetic waves are transverse)
29. White light.
A light wave is a transverse wave.
If we mix red, blue, and green lights we would make white light.
Hope this helps! :D
What is the function of the small, dark organelles labeled E?
They assemble amino acids into proteins.
Answer:
It is a ribosome They produce proteins for the cell.
Explanation:
Hope this helps :)
A seed, known as "pinhão", is the great evolutionary novelty that is present in Gymnosperms plants. Choose the correct affirmative sentence related to seeds.
Hi. Unfortunately, you didn't show the answer options, which makes it impossible for me to answer your question. However, I'm going to give you some general information about seeds that can help you find the right answer. Hope this helps you.
Seeds are structures responsible for plant proliferation. They exist only in gymnosperms and angiosperms and are absent in bryophytes and pteridophytes. All seeds are formed in the ovary of flowers as a result of the plant fertilization process.
All seeds are formed by three structures known as integument, nutrient and embryo. The embryo is what gives rise to another plant, which will grow after the seed is planted and germinates. Nutrients will be responsible for meeting the needs of the new plant during the beginning of its development. The integument, in turn, has the function of protecting the embryo.
Hotter then the sahara desert is an example of a metaphor hyperbole personification or simile
Answer:
hyperbole (hyperbole is an exaggeration, just like the sentence)
Consider two solutions of different sodium concentrations separated by a selectively permeable membrane. The net movement of water across the membrane will be from the area of ______ sodium concentration to the area of ______ sodium concentration.
Answer:
Consider two solutions of different sodium concentrations separated by a selectively permeable membrane. The net movement of water across the membrane will be from the area of high sodium concentration to the area of low sodium concentration
Explanation:
In this process, only water molecules can pass through the selectively permeable membrane. As the solution has different concentrations of solute, the water molecules will move from the more concentrated solution to the less concentrated solution. The process is called osmosis and is completed when both solutions have the same concentration.
Rot could wipe out all Cavendish bananas. What do you propose for a solution?
Answer: i would propose using a fungicide on the bananas, use one that isn’t harmful to other harmless plants, insects, or animals.
what is your favourite movie and have 100 pojnts
Answer:
my favourite movies are
happy new year
captain
rustom
son of satyamurty 2
harry potter
love unexpected
Answer:
My favorite movie is elf
Explanation:
Lab: Natural Selection
Assignment: Lab Conclusion Active
Prompt
Address the following points in paragraph form to write your conclusion.
1. Restate the overall purpose of the experiment. (Why did you do this experiment? What did it teach you?)
2. What were the major findings? (summarize the data you collected)
3. Was the hyposthesis supported by the data? (state your hypothesis and explain how your data relates to your hypothesis)
4. How could this experiment be improved? (If you did this again what could you do differently?)
5. What could be studied next after this experiment? (What else could you test to help you better understand this topic?)
DA
Answer:
sorry if i did not get it right : B
Explanation:
Spring 1 and Spring 2 were the same. Then, Spring 1 was pushed together with a little and clamped in place. Spring 2 pushed together a lot and clamped in place. Which spring has more potential energy?
Answer:
spring 2 is the answer..
Answer:
Spring 2
Explanation:
define phanerograms with examples.
Answer: Phanerogams are plants that have special structures for reproduction and generate seeds. Also, according to if the seeds are enclosed in a fruit or not, phanerogams are divided into gymnosperms and angiosperms.
Explanation:
Hope it helps you if not sorry
Cells with a full set of chromosomes are referred to as diploid or 2n, whereas cells with half the chromosomes are haploid or n. At which stage(s) of meiosis I are the cells diploid and at which stage(s) are they haploid
Answer:
Diploid → Prophase, metaphase, and anaphaseHaploid → TelophaseExplanation:
During prophase I, chromosomes get condensed. Each of the chromosomes gets in pair with its homologous one. They do so to make the crossing-over possible, a stage where they interchange their parts → 2n
During metaphase I, each of the homologous pairs is driven to the equatorial plane, where they randomly line up → 2n
During anaphase I, occurs the independent separation of homologous chromosomes that migrate to opposite poles of the cell. This separation generates different chromosomal combinations in the daughter cells. There are two alternatives per homologous pair → 2n
In telophase I, half of the chromosomes are already in one of the poles, while the other half is on the other pole. Each group of chromosomes has now half the number of the original cell. The nuclear membrane forms again in each pole → n
Finally, occurs cytokinesis, which involves the invagination of the cell membrane and cytoplasmic division.
The two new cells are ready for meiosis II.
Mitosis and Meiosis are the two types of cell division, in which the genetic material is replicated and transferred to the daughter cells.
The stages of meiosis in which chromosomes are diploid are prophase, metaphase, and anaphase. The haploid chromosomes are observed in telophase.
Meiosis is a reduction division in which genetic material is halved, such that a reduction in which diploid parent cells give rise to haploid daughter cells.
The stages of meiosis at which chromosomes are diploid and haploid are:
1. Prophase I is the first phase of meiosis I. The chromosomes are condensed and pair with the homologous chromosomes.
2. Metaphase I is characterized by the homologous pairs aligning at the equatorial plane.
3. Anaphase I is the independent separation of chromosomes, which migrate to opposite poles.
4. Telophase I is represented by the separation of chromosomes having a haploid number of chromosomes, which are now segregated into daughter cells.
Therefore, telophase I am the phase in which chromosomes are present in haploid numbers.
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Innate immunity ________. is found only in vertebrates is the first, and most general, mechanism of protection against pathogens depends on an infected animal's previous exposure to a pathogen is based on recognition of antigens that are specific to a pathogen
Answer:
is the first, and most general, mechanism of protection against pathogens
Explanation:
Innate or natural immunity is one of the two types of immunity an organism can possess (the other being; acquired immunity). Innate immunity is the FIRST defensive response of an organism against pathogenic attacks. The acquired immune system is only activated when the innate immune system has been penetrated or surmounted.
For example, the skin, mucus secretion, inflammation etc. are all natural or innate defenses against foreign invaders. Therefore, according to this question, innate immunity the first, and most general i.e. commonly used, mechanism of protection against pathogens.