Mammals have ___ key classes of immunoglobulins

A) 3
B) 4
C) 5
D) 6

Fill in the blank with the correct answer.


Answer: C

Anatomy & Physiology

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Which of the following is a function of the amnion?

A. It enables the embryo to develop symmetrically. B. It protects the embryo from trauma. C. It allows movement and supports muscle development. D. It limits temperature fluctuation. E. All of the choices are correct.

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What does the embryonic neural tube develop into?

A. The digestive tract B. The liver and spleen C. The brain and spinal cord D. The vertebrae E. The brain, spinal cord, and vertebrae

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The type of gland that secretes sweat into a hair follicle that is found in the axillary, anal, and genital regions is the ________ sweat gland. 

A. apocrine B. sebaceous C. merocrine D. ceruminous

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Each somatic motor neuron with all the muscle fibers it innervates is a ________.

A. motor unit B. fascicle C. sarcolemma D. varicosity

Anatomy & Physiology