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Answer:
A lymphocyte is a type of white blood cell that is part of the immune system. ... The B cells produce antibodies that are used to attack invading bacteria, viruses, and toxins. The T cells destroy the body's own cells that have themselves been taken over by viruses or become cancerous.
non competitive inhibitor binds with which site of an enzyme?
What are the two types of fermentation?
Answer:
Alcoholic fermentation and lactic acid fermentation.
Explanation:
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I need help pls help me
Answer:
Its C. They divide by mitosis since one paramecium cell divides into two genetically identical offspring, or daughter cells.
Which of the following is not released by trees into the atmosphere? a. Oxygen b. Water vapor c. Ozone d. None of the above Please select the best answer from the choices provided A B C D.
An atom of phosphorus has an atomic number of 15 and a mass number of 31. How many neutrons does it contain
Answer: 16 neutrons
Explanation:
Mass-atomic number
31-15=16
10. What happens when a cell reproduces?
A. Two similar daughter cells are created.
B. One mother cell and one daughter cell are created.
C. One mother and two similar daughter cells are created.
D. One father and one mother cell are created.
Answer:
A
Explanation:
Through the process of Mitosis (form of cell division that produces cells, such as Skin cells). A parent cell splits, creating two daughter cells.
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Can the effects of UV light on folate explain the full variation of human skin color that exists among human populations today? Explain your reasoning
Human skin colour is due to a pigment called melanin. The melanin pigment is present in outer layer of skin cells. UV light causes increase in production of melanin resulting in darker skin shade.
Why the human skin colour varies?UV radiation can cause photolysis of folate. This can lower the level of folate. If the level of melanin increase, it will stop the breakdown of folate. This will result in variation of colour in high intensive UV areas.
Thus, it can be concluded that increased UV radiation can cause variation in human skin colour.
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what does an energy pyramid represent? by a food web and energy pyramids
Answer:
It's a graphical representation of the energy found within the tropic levels of an ecosystem.
Explanation:
What can be used to measure primary productivity in an ecosystem?(1 point)
carbon dioxide consumption
water consumption
oxygen consumption
sugar consumption
Carbon dioxide consumption
Carbon dioxide consumption can be used to measure primary productivity in an ecosystem.
Primary productivity refers to the rate at which energy is converted to organic material by photosynthesis.Primary productivity can be calculated by analyzing the change in biomass of producer organisms.Primary productivity can also be calculated by analyzing the movement of carbon dioxide (consumption).
Primary productivity can also be estimated by analyzing the movement of carbon dioxide the movement of oxygen over time.
In conclusion, carbon dioxide consumption can be used to measure primary productivity in an ecosystem.
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How does carbon enter the biotic components of the carbon cycle?
A) through the process of respiration
B)through the process of photosynthesis
C)through the combustion of fossil fuels
D) through decomposition of dead organisms
In the carbon cycle, plants take CO2 from the atmosphere and carry out photosynthesis by which they incorporate carbon into the biotic components of organic compounds.
What is the carbon cycle?It is a biogeochemical cycle that starts with carbon dioxide in the atmosphere, which is adsorbed together with the sun's energy in the photosynthesis process of plants.
Characteristics of the carbon cycleDuring the day, plants use the Sun's energy to convert CO2 from the atmosphere plus water into carbohydrates and oxygen, this process is photosynthesis.Therefore, we can conclude that the carbon cycle is a cycle that flows through the terrestrial ecosystem, through the photosynthesis of plants, by animals or decomposing organisms, and the oceans.
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According to your cladogram, what species are dragonflies most closely related to? How
do you know?
Which of the following is NOT one of the six basic crystal systems?
1- monoclinic
2-triclinic
3-diclinic
4- cubic
Answer:
6 Crystal Systems:
Triclinic, Monoclinic, Rhombic, Hexagonal and Trigonal, Tetragonal and Cubic.
The correct answer is 3. diclinic
please look at the screenshot
Answer:
i think the answer is A becouse i think the both are stags
How do antibiotics work own words
Answer=
Antibiotics work by interrupting critical bacterial activities, killing or preventing germs from growing.
Explanation:
The body's natural immune system is aided in fighting bacterial infection as a result of this. Antibiotics are effective against a variety of germs and They do this by either killing the bacteria or preventing them from replicating or duplicating themselves.
Darwin's Theory
Project: Analyzing the Effects of the Environment on Traits
Active
What is contained inside the nucleus of every cheek cell?.
The content of the nucleus of every cell is DNA
NucleusThe nucleus is an organelle present in all eukaryotic cells.
The organelle contains instructions for all cellular processes.
The instructions are stored as genes, which are coded for by sequences of deoxyribonucleic acids.
Thus, since the nucleus largely contains DNA, and other molecules such as proteins, the nucleus of every cheek cell would also contain DNA.
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what do you mean by organic evolution
Answer:
organic evolution is the theory
that more type
The Mexican long-nosed bat roosts in Big Bend National Park in West Texas. The bat feeds on nectar and pollen and hovers while it feeds. Additionally, its tongue can extend up to eight centimeters. The features of Mexican long-nosed bats are evidence of natural selection because the features are adaptations that — lead to an increase in predation by other species of animals lead to an increase in predation by other species of animals show that most DNA mutations are necessary and advantageous but do not increase survival or reproductive success show that most DNA mutations are necessary and advantageous but do not increase survival or reproductive success help individuals outcompete other individuals for food resources to increase survival and reproductive success help individuals outcompete other individuals for food resources to increase survival and reproductive success are the result of intentional breeding
Natural selection results in adaptation, increasing in the individual's fitness. Option C. Features are adaptations that help individuals outcompete other individuals for food resources to increase survival and reproductive success.
What is natural selection?
Natural selection is an evolutive force.
It selects beneficial alleles in a population and increases their frequency.
It is the result of the phenotype-environment interaction which determines gene destiny in space and time.
Natural selection results in adaptation, meaning that it causes an increase in the aptitude phenotype.
Aptitude (or fitness) is reflected by the phenotype that results in the survival, fertility, and capability of having a mate. It is a way of measuring the individual ability to leave fertile offspring.
In many cases adaptations, resulting from natural selection can be correlated to environmental factors or selective pressures applied by other organisms or habitats.
In the exposed example, the features are adaptations that help individuals outcompete other individuals for food resources to increase survival and reproductive success.
selective pressure ⇒ competition for resources
influence in fitness ⇒ increase survival and reproductive success.
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Although bacteria and other single-celled organisms can produce genetically identical offspring. they sometimes still exchange DNA be passing it from bacteria to bacteria. What might be the advantage of exchanging DNA in this way?
p
Answer:
Bacteria, like all living organisms, have evolved at least one autonomous mechanism, conjugation, for exchanging portions of genetic materials between two related cells. The ecological benefits of conjugation include the expansion of metabolic versatility and resistance to hazardous environmental conditions.
Explanation: Hope this helps
It was so bad I give you a zero but that’s not possible so I give you…
Answer:
a one...
Explanation:
a one...............
Did anyone take this quiz???
50 POINTS AND WILL BRAINLIEST!!!
Answer each part of this question completely in the space provided.
Use the data to explain the changes in phenotypic frequency from generation 1 to 3.
Do you think this population is in Hardy-Weinberg equilibrium? Provide reasoning to support your claim.
The phenotypic frequency from generations 1 to 3 shows there are naturally more individuals with the dominant trait. Moreover, changes in frequency show this population does not have Hardy Weinberg equilibrium.
What are the changes in phenotypic frequency?Phenotypic frequency refers to how common a trait is in one population. In this case, the number of individuals with a recessive vs those with a dominant trait.
From the information provided in the chart, we can see in the first three generations there is a higher number of individuals with a dominant trait, which is genetically natural, and this occurs even as the population grows.
Is there Hardy Weinberg Equilibrium?Hardy Weinberg Equilibrium is a principle that establishes under normal conditions phenotypic frequency should be constant. This does not occur in this population because by generation 6 there is almost the same number of individuals with a dominant and a recessive trait, which shows phenotypic frequency is changing.
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Which enzyme catalyzes the addition of nucleotides to a growing dna chain?.
Answer:
One of the key molecules in DNA replication is the enzyme DNA polymerase. DNA polymerases are responsible for synthesizing DNA: they add nucleotides one by one to the growing DNA chain, incorporating only those that are complementary to the template.
Explanation:
Organisms that have only one chromosome of each type are called.
Why is the order of amino acids important?
Answer:
Because its the primary structure of the protein
Explanation:
How do Codominance and Incomplete dominance affect the inheritance of traits? Question 5
25 POINTS! What type of inheritance would you have if the cross between a purple flowered plant and a white flowered plant produced lavender flowers?
A: Recessive
B: Incomplete dominance
C: Codominance
D: Simple dominance
Answer:
b. incomplete dominance
Explanation:
its incomplete dominance because neither parent phenotype is visible but both phenotypes are instead "blended". purple + white = lavender
The type of membrane transport involving receptor-mediated endocytosis of low molecular weight molecules such as vitamins is known as
Answer:
potocytosis
Explanation:
The surface along which the crust moves is called a fracture.
True
False
Answer:
False.
Explanation:
Faults are cracks in the earth's crust along which there is movement.
Answer:
False
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