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Luda [366]
2 years ago
9

Coordinate the immune system response by activating effector cells Memory B and T cells Helper T cells B cells Cytotoxic T cells

Biology
1 answer:
LekaFEV [45]2 years ago
8 0

Answer:

Helper T cells

Explanation:

This is because it is a type of adaptive immune system that stimulate B cells, microphages and cytoxic T cells. Helper T cells are used in different adaptive immune responses. They help to activate B cells so as to produce antibodies and also help macrophages to destroy ingested microbes. they also help activate cytotoxic T cells which will inturn kill infected target cells.

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2 years ago
- For plants and other organisms to develop differences among their respective species the alleles of their genes must contain
andre [41]

Explanation:

Mutations increase variation within a population.

During the process of cell division, spontaneous changes within the genome can arise. These mutations are errors occur when copies of the DNA within the cell are made; mutations may range from small changes called single nucleotide polymorphisms, to large scale deletions, and additions which span multiple genes. There are two types:

  • somatic: these only occur within certain cells, and arise from environmental factors such as UV light
  • hereditary: occur within germ cells of the parent and later the fertilized egg which forms a zygote; these are present within all cells of the new organism.

Further Explanation:

During reproduction other events, such as crossing over during mitosis and meiosis, mutations lead to increases in genetic variation. This variation refers to the genetic characteristics present within a species. Mutations may be either beneficial or deleterious; they are maintained within cells, as they form new traits called alleles. Beneficial mutations may confer traits that increase the fitness of a species, along with ensuring survival by conferring a protective advantage- these phenotypic differences between organisms are called adaptations.

Sequences of DNA make up genes which can have different forms called alleles. DNA, which makes up the genotype, is transcribed into mRNA and later translated into amino acids which are linked together by rRNA to form proteins which make up the phenotype of an organism.Mutations in DNA sequences affect the corresponding mRNA and thus the protein encoded.

Learn more about mutations at brainly.com/question/4602376

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly

5 0
3 years ago
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densk [106]
Mitochondria is the powerhouse of the cell

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7 0
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Which of the following terms relate to the meaning of "physical"?
nikitadnepr [17]

Answer:

the answer is body

Explanation:

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3 years ago
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What are the building blocks of DNA And RNA
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The basic building block of DNA and RNA are Nucleotides.
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3 years ago
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