Which of the Following Statements Is Correct with Respect to the Sites

question 1

Multiple Choice

Which of the following statements is correct with respect to the sites of synthesis of B and T cells.

• A)In bony fish,B cells are produced in the kidney or spleen.
• B)In most vertebrates,B cells are produced in body cells,but in different locations of the body.
• C)Jawless fish produce T cells in the thymus.
• D)Bony and cartilaginous fish produce T cells in the gill region,referred to as the thymoids.

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Definitions:

Thermoregulation

The process of maintaining body temperature within certain limits despite changes in the surrounding temperature.

Internal Metabolism

The complex set of chemical transformations within the cells of living organisms that are crucial for life, including energy production and the synthesis of necessary compounds.

Acclimatization

Adjustment to seasonal changes.

Torpor

An energy-conserving state of low metabolic rate and inactivity. See estivation and hibernation.