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I am Lyosha [343]
3 years ago
9

Which of these are included in the immune response? Check all that apply. T-cells lymphocytes B-cells phagocytes oil antibodies

Biology
2 answers:
Brut [27]3 years ago
8 0

Answer: T-cells lymphocytes

B-cells

phagocytes

The immune response can be defined as the response that is generated by the immune system against an active foreign agent. The antigens of the body get activated to produce numerous antibodies which fight against the foreign agent and prevent it from causing disease symptoms. The immune response generate during pathogenic infection, allergies, graft or organ rejections.

T lymphocytes are specialized type of white blood cells. They are developed from the stem cells of the bone marrow. They help in protection of the body from the infection against foreign agent and prevents the development of tumor, hence fights against cancer.

B cells are the type of white blood cells which are capable of producing antibodies hence, they generate immune response.

Phagocytes are the specialized cells which engulf foreign agents such as bacteria, dust particles and others capable of causing diseases and allergies and provide immunity to the organism.

vovangra [49]3 years ago
3 0

Answer:

✓ T-Cells

✓ Lymphocytes

✓ B-cells

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What fossil evidence helped taxonomists separate all "fish" into these two branches for classification?
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The correct answer is option A, that is, jaw or jawless fishes.

Agnatha refers to the superclass of jawless fish in the phylum Chordata, subphylum Vertebrata, comprising of both the extinct (conodonts and ostracoderms) and present (cyclostomes) species. It comprises the group of all vertebrates with jaws, that is, gnathostomes.

On the other hand, there are two categories of living fish with jaws. The Osteichthyes (the bony fish) and the Chondrichthyes (the cartilaginous fish). Both the categories of fish comprises of two pairs of lateral fins and a finned tail for impulsion in water.


4 0
3 years ago
Read 2 more answers
In a small, isolated population of piranhas, one individual is born with a synonymous mutation in a gene that codes for the beta
IrinaVladis [17]

Answer:

The correct answer is: Genetic Drift.

Explanation:

  • In any population of any species having two or more alleles encoding for different genes, the frequency of occurrence of each allele among the individuals of a population can vary.
  • The frequency of one allele may be far more or far less than the frequency of other alleles.
  • The frequency of any particular allele is dependent on factors like random mating among individuals as well as natural selection, that tends to increase the frequency of those alleles which provide a survival advantage to the individual in a given environment.
  • Genetic drift can be defined as a phenomenon due to which the frequency of an allele encoding for a particular gene undergoes drastic change (increase or decrease) in a population due to random mating as well as natural selection.
  • In the given statement, one individual of an isolated population of piranhas underwent synonymous mutation in the beta-globin encoding gene.
  • A synonymous mutation can be defined as such a change in the nucleotide sequence of a gene that does not affect the sequence, structure or function of the protein encoded by it.
  • The increase in the frequency of the mutated form of the beta-globin gene after five generations to 5% indicates that due to the impact of random mating or natural selection or both, this has happened.
6 0
3 years ago
What is the hardness of copper and aluminum
Charra [1.4K]
Aluminum is 15 and copper is 35
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In class, your professor shows you the skulls of three mammals. In one, the eye would be fully enclosed by bone. In the second,
zheka24 [161]

Answer:

C

Explanation:

It is more probable that the third one has a more developed sense of the vision with a large eye, and its movements. Also with a opened back to receive its nutrition and optic nerve.

Sources:

Zihlman, Adrienne. (2006). «The Ape in the Tree». International Journal of Primatology (en inglés) 27 (4): 1227-1228

8 0
3 years ago
Which of the following is NOT part of the cell theory? a. The cell is the basic unit of life performing all necessary life funct
Citrus2011 [14]

Answer:

D

Explanation:

because cell are not pre existing

8 0
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