Immune System

Question: In animals, blood clots serve the function of
[A].

consuming invading organisms

[B].

helping them match the background coloration of the habitat

[C].

stimulating production of killer T lymphocytes

[D].

repairing damage to the body wall

Answer: Option D

Explanation:

No answer description available for this question.

Question: Which of the following produces the antibodies employed in the specific immune response of vertebrates?
[A].

B lymphocytes

[B].

T lymphocytes

[C].

Neutrophils

[D].

Macrophages

Answer: Option A

Explanation:

No answer description available for this question.

Question: Which of the following provide specific defense against viruses and bacteria?
[A].

T cells

[B].

B cells

[C].

Complement

[D].

inflammation

Answer: Option B

Explanation:

No answer description available for this question.

Question: Lack of reaction to our own human leukocyte antigens (HLAs) is known as?
[A].

autoimmunity

[B].

complement system

[C].

clonal selection

[D].

tolerance

Answer: Option D

Explanation:

No answer description available for this question.

Question: A cell which defends against body cells in which viruses are reproducing is
[A].

Exotoxin

[B].

Cytotoxic T cell

[C].

Endotoxin

[D].

Suppressor T cell

Answer: Option B

Explanation:

No answer description available for this question.

Question: Which of the following white blood cells act as scavengers when they engulf and digest pathogens?
[A].

Macrophages

[B].

T cells

[C].

B cells

[D].

Lymphocytes

Answer: Option A

Explanation:

No answer description available for this question.