The region of an enzyme into which the substrate fits is a

A.  one-size-fits-all active site.
B.  highly specific active site.
C.  highly specific antibody.
D.  one-size-fits-all antibody.


B

Anatomy & Physiology

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The shape of the external ear is maintained by ________

A) hyaline cartilage B) elastic cartilage C) fibrocartilage D) adipose tissue

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The ventral and dorsi rami of each spinal nerve contain both sensory and motor nerves

Indicate whether the statement is true or false

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B cells are primarily activated by the activities of

A) antigens. B) antibodies. C) helper T cells. D) macrophages. E) plasma cells.

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The wrist is composed of eight

A. tarsal bones. B. carpal bones. C. metacarpal bones. D. metatarsal bones. E. digits.

Anatomy & Physiology