In multicellular organisms, different structures have different functions. Which function is carried out in the leaves of a plant?.
Answer:
The leaves of a plant absorb light
Which of the ideas below is a good characteristic of a scientific experiment?
A. Small sample size for collecting data.
B. Uncontrolled surroundings
C. Repeated Trials
D. Variable procedures for obtaining data- changing the steps that you follow during an experiment
Which part of the plasma membrane helps cells recognize each other as
well as enable
fluids/chemicals/etc.
into and out of the cell?
O Integral Proteins
O Carbohydrates
O Peripheral Proteins
O Phospholipid Bilayer
Answer:
Phospholipid Bilayer
Explanation:
i helped my friend with her test and that was the answer
Identify the stomata components.
a. _________
b. _________
The stomata components also include a) subsidiary cells, which are specialized cells surrounding the ,b) guard cells that assist in the opening and closing of the stomatal pore.
What are the types of stomata ?1. Based on structure:
• Anomocytic stomata: with no surrounding specialized cells
• Paracytic stomata: with one or more subsidiary cells parallel to the guard cells
• Diacytic stomata: with two subsidiary cells at right angles to the guard cells
• Cyclocytic stomata: with one or more subsidiary cells encircling the guard cells
2. Based on location:
• Hypostomatic stomata: present only on the lower epidermis
• Epistomatic stomata: present only on the upper epidermis
• Amphistomatic stomata: present on both the upper and lower epidermis.
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What type of competition is pictured above?
O Interspecific competition
Intraspecific competition
competitive exclusion
Niche competition
Answer:
Interspecific competition
Explanation:
This is competition between different species
Intraspecific competition is between the same species
Aquatic nitrate pollution can result in _____. algal bloom oxygen depletion fish kills hypoxia an algal bloom that, when the algae die and are decomposed by bacteria, leads to hypoxia and the death of fish
Aquatic nitrate pollution can result in algal bloom that when the algae die and are decomposed by bacteria, leads to hypoxia and the death of fish.
What is algal bloom?Algal bloom is a dense spread of algae on the surface of water.
Algal bloom is caused by a process of eutrophication, which is the release of artificial or natural nutrients, mainly phosphates, through detergents, fertilizers, or sewage, to an aquatic system.
Therefore, it can be said that aquatic nitrate pollution can result in algal bloom that when the algae die and are decomposed by bacteria, leads to hypoxia and the death of fish.
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A sequence of three nitrogenous bases in a messenger-rna molecule is known as a.
Answer:
A sequence of three nitrogenous bases in a messenger-rna molecule is known as Codon
Explanation:
Codon is a triplet of three nitrogenous bases present in mRNA. It can be any three from uracil, adenine, guanine or cytosine. They are arranged in specific order and code for specific amino acids.
Match the biological structure with its metaphorical equivalent Question 5 options: Movie Authors Words Chapter variations Script Sentences Books Chapter numbers Library 1. Nucleotides 2. Genes 3. Allele locations (loci) 4. Alleles 5. Chromosomes 6. Karyotype 7. Parents 8. Genotype 9. Phenotype
1. Nucleotides: A phosphate group, a 5-carbon sugar, and a nitrogenous base are the three components of a nucleotide. Adenine, cytosine, guanine, and thymine are the four nitrogenous bases in DNA. Instead of thymine, uracil is found in RNA. The genetic material of all known living creatures is made up of nucleotides in a chain.
2. Genes: A gene is a small segment of a lengthy DNA double helix molecule that consists of a linear base pair sequence. A gene is any portion of DNA that contains instructions that allow a cell to generate a specific product – usually a protein, such as an enzyme – that performs a single specified action.
3. A locus (plural loci) is a stable location on a chromosome where a certain gene or genetic marker can be found.
4. At a genomic region, an allele is one of two or more variations of DNA sequence (a single base or a segment of nucleotides).
5. Chromosomes are thread-like structures found within the nucleus of both animal and plant cells. Protein and a single molecule of deoxyribonucleic acid make up each chromosome (DNA). DNA is passed along from parents to children and carries the precise instructions that distinguish each living thing.
6. Karyotype: A karyotype is a individual's entire set of chromosomes. A laboratory-produced representation of a person's chromosomes extracted from an individual cell and arranged in numerical order is also known as a chromosomal map. A karyotype can be used to check for chromosomal number or structural problems.
8. Genotype: An organism's genotype is its genetic makeup. From embryonic development to adulthood, the genotype determines an individual's inherited potentials and limitations. In se×ually reproducing organisms, a person's genotype is made up of the whole set of genes acquired from both parents.
9. Phenotype: Physical traits are described by phenotypes. It encompasses both apparent (such as hair or eye color) and measured characteristics (like height or weight). Characteristics relevant to your development and behavior, such as personality traits, are also referred to as phenotypes.
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The frequency of a certain trait in a population of beetles will increase over time if -
there is variation in that trait within the population.
beetles possessing the trait produce more offspring
the trait is not linked to the genetic makeup of the beetle.
it creates a specialization to a specific food source.
Answer:
this question is asking what an adaptation is or what an adaptive trait is.
Explanation:it has been hypothesized that sympatric speciation of pine beetles may occur through the isolation of populations as a result of increasing dietary ...
3. what is a catalyst? explain the effect of a catalyst on the rate of chemical reactions. how does a catalyst influence the activation energy required by a particular reaction?
A catalyst is a chemical substance that speeds up chemical reactions by lowering the activation energy.
What is the activation energy?The activation energy of a reaction is the amount of energy required to carry out a chemical reaction.
Proteins are biological catalysts that speed up chemical reactions by lowering their activation energy.
In conclusion, a catalyst is a chemical substance that speeds up chemical reactions by lowering the activation energy.
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In a metapopulation, source populations are species that are likely to have more individuals immigrating to habitat patches than other species. This means that source populations:
In a metapopulation, source populations are species that are likely to have more individuals immigrating to habitat patches than other species. This means that source populations can inhabit the largest suitable ecological patch.
What do you mean by Population?A population may be defined as the members of the same species living in a particular area at a given time.
A metapopulation is a collection of the regional populations within some more extensive area, where migration from one population to another is possible.
Therefore, it leads to inhabiting the largest suitable ecological patch.
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Assume that k and m are two unlinked genes that affect hearing. The dominant k allele is necessary for hearing, and the dominant m allele causes deafness regardless of the other genes present. Given this, what fraction of the offspring of parents with the genotypes kkmm and kkmm will most likely be deaf?.
The percentage that the offspring will be deaf is 75%. Two punnet squares are needed each for km and Kkmm individuals. In punnet square 1, half of the genotypes are Km and km while half are Mm and kk in punnet square 2. The two punnet squares are then combined to form a final one where a quarter of the offspring is deaf.
What does genotype mean?In a wide sense, the word"genotype" refers to the genetic makeup of an organism; it defines an organism's complete set of genes. In a more thin sense, the term can be used to guide the alleles, or variant forms of a gene, that are carried by an organism.
Thus, this could be the answer.
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During endochondral bone formation, the secondary ossification center never begins to form. What will the developing bone look like
During endochondral bone formation, the epiphyses remain cartilaginous until the stage of adulthood.
What does endochondral generation mean?Endochondral generation is a cellular phenomenon where hyaline cartilage can be replaced with bones.
This phenomenon (endochondral formation) is due to the differentiation of specialized mesenchymal cells to chondrocytes.
Endochondral formation of bones includes:
mesenchymal cells differential gene expression (chondrocytes)proliferation bone formationIn conclusion, during endochondral bone formation, the epiphyses remain cartilaginous until the stage of adulthood.
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someone please help me
Which of these equation is the correct one for fermentation?
❍ Glucose + oxygen → carbon dioxide + water
❍ Glucose → lactic acid
❍ Glucose → ethanol + carbon dioxide
☣ Explanation -:To understand this first we should know what is fermentation.
What is fermentation?
A process of chemical change in food or drink because of the action of yeast which may cause it to produce bubbles or heat, or turn sugars in it into alcohol.
Equation -:
[tex] \small\sf{C_{6}H_{12}O_{6} \rightarrow2C_{2}H_{5}OH + 2CO_{2}} [/tex]
Which means
Glucose → ethanol + carbon dioxide
Hence opition c is the correct answer.How is carbon released into the atmosphere?
A evaporation
B cellular respiration
C rocks
D specialized Bacteria
Answer:
B. cellular respiration
Explanation:
Explain the difference between constitutive and facultative skin color in simple words.
Answer:
Constitutive is natural skin color and facultative is the darkening due to UV or other factors.
Explanation:
Constitutive skin color is the natural color of the skin, and that color has nothing to do with any controllable/external factor and is determined in your genes, while Facultative is the result of ultraviolet light or other environmental factors which causes a change in melanin in the skin therefor making it darker
Explain the changes that happen in the body before and after exercise
Answer:
While exercising, the muscles need additional energy as the breathing rate and volume of each breath increase to bring more oxygen into the body and remove the carbon dioxide produced. If insufficient oxygen is available to the muscles, for instance, the exercise is vigorous and/or prolonged, the heart and lungs are unable to supply sufficient oxygen. Muscles begin to respire anaerobically. Lactic acid is produced from glucose, instead of carbon dioxide and water. Muscles continue to contract, but less efficiently. When a period of exercise is over, lactic acid must be removed, because the body's tolerance to lactic acid is limited. These processes require oxygen. This is why, when the period of activity is over, a person’s breathing rate and heart rate do not return to normal straight away.
Explanation:
What 2 chemicals is the contents of the stomach composed of
Answer:
digestive enzymes, hydrochloric acid
Explanation:
Gastric juice is made up of digestive enzymes, hydrochloric acid and other substances that are important for absorbing nutrients – about 3 to 4 liters of gastric juice are produced per day. The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins
Which of the following planets has the largest orbital radius compared to the others?
Group of answer choices
Jupiter
Mercury
Saturn
Venus
Answer:Jupiter
Explanation:
is the largest of all the planets. It has a radius of 71,492 kilometers at the equator and a radius of 66,854 kilometers at the poles
which part of a green plant shows the greatest increase in chloroplast by the end of spring
Answer:
The leaf shows the greatest increase
Which organ is primarily responsible
for absorbing nutrients from food?
A. mouth
B. heart
C. lungs
D. small intestine
Answer:
D
Explanation:
Which factor is most likely to cause a faster rate of blood flow?
A.
decreasing stress
B.
exercising
C.
sickle cell disease
D.
atherosclerosis
Answer:
B. exercising
Explanation:
exercise widens veins and arteries making blood go faster
faster blood means more oxygen to muscles
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Mary and larry each have free earlobes and dark hair. they are both heterozygous. (e = free earlobes, e = attached earlobes, d = dark hair, d = light hair). e is dominant, e is recessive. d is dominant, d is recessive. what genotypes and phenotypes can their offspring have and what is the probability of each genotype and phenotype?
The genotypes and phenotypes their offsprings can have include only free lobes and attached hair.
What is Genotype?This is defined as the genetic constituent of an organism while phenotype represents the physical characteristics.
Dd and Ee when crossed will give DE, De, dE and de which means that the genotype will be 1 homozygous dominant,2 heterozygous and 1 homozygous recessive for free lobes and attached hair.
The probability = number of favorable outcome/ total number of outcome.
The total number of outcome = 4
The probability for 1 homozygous dominant,2 heterozygous and 1 homozygous recessive is therefore 1/4 , 1/2 and 1/4 respectively.
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The functional units of dna that contain the instructions for making one or more proteins are.
Answer:
The functional units of dna that contain the instructions for making one or more proteins are the "Genes".
What is one characteristic of Mercury?
A. It has the densest atmosphere of the terrestrial planets.
B. It has the largest temperature variation of the terrestrial planets.
C. It is the terrestrial planet farthest from the sun.
D. It has the strongest magnetic field of the terrestrial planets.
Answer:
It has a solid surface that is covered with craters like our Moon.
Explanation:
I hope it helps u dear (^^)
20. calculate the molar enthalpy of vaporization of a substance, given that 0.433 mol of the substance absorbs 36.5 kj of energy when it is vaporized.
The molar enthalpy of vaporization of the substance is 84.3 kj/mol.
What is molar enthalpy of vaporization?Molar enthalpy of vaporization is the energy required to vaporize one mole of a liquid at its boiling point.
0.433 moles of the substance absorbs 36.5 kj of energy when it is vaporized.
1 mole of the substance will absorb 36.5 kJ × 1 /0.433mol = 84.3 kj/mol
Therefore, the molar enthalpy of vaporization of the substance is 84.3 kj/mol.
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Which of the following is not caused by a virus?
Chicken pox
Tuberculosis
Mumps
Measles
Answer:
Tuberculosis.
Explanation:
it is caused by a bacterium which can attack any part of the body such as the kidney, spine, and brain. not everyone infected with TB becomes sick
What claims, language and message could unlock star potential for our strong, effective portfolio of topical pain reliever s?
Connecting with the consumer in a meaningful way with the unique benefits being included will unlock star potential of the pain reliever.
What is Message?These consists of means of passing information about an individual or a substance.
Tropical pain reliever should have the unique benefits passed to ensure increase in sales and profit.
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What structural adaptations does a rhino have and how do those adaptations enable it to survive?
Answer:
Black rhinos have a number of adaptations that help them survive in their environment, including an upper lip that is prehensile, which means the rhino can use it almost like a hand and which sets them apart from white rhinos. They also have thick skin and can rotate their ears.
Explanation:
correct me if I'm wrong because i work hard for this question
Use the drop-down menus to identify the type of energy each phrase describes.
The shortest wavelength of visible light
Energy that can be felt as heat but not seen
Short, invisible rays that can cause eye damage
Visible light with the longest wavelength
Each sentence describes a different form of energy:
The shortest wavelength of visible light is violet light.Energy that can be felt as heat but not seen is infrared radiations.Short, invisible rays that can cause eye damage is ultraviolet radiations.Visible light with the longest wavelength is red light.Define electromagnetic spectrum?An electromagnetic spectrum is a set of frequencies and wavelengths over which an electromagnetic wave can be spread (extends).
From smallest to longest wavelength (highest to lowest frequency), the electromagnetic spectrum consists of the following types of energy:
Gamma raysX-raysUltraviolet radiationVisible lightInfrared radiationMicrowavesRadio wavesType of energy:
Each phrase in science describes a different form of energy:
1. Violet light has the shortest wavelength of visible light.
Visible light has a wavelength of 380 to 450 nanometers.
2. Infrared radiations are energy that can be felt as heat but cannot be seen.
Infrared radiation is a form of energy that the human body perceives as heat but that cannot be seen since it is outside the visible light range.
3. Ultraviolet radiations are short, invisible rays that might cause eye injury.
Ultraviolet light, which is mostly produced by the Sun, has the potential to harm the eyes.
4. Red light is the visible light with the longest wavelength.
Red light has a wavelength of 620 to 750 nanometers.
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Answer:
1.D
2.B
3.C
4.A
Explanation: