The plasma membrane
a. is composed primarily of phospholipids and proteins arranged in a fluid mosaic structure.
b. has a trilaminar appearance under an electron microscope.
c. acts as a mechanical barrier.
d. all of these answers.
e. none of these answers.
D
Anatomy & Physiology
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(a) lymph ducts (b) lymph vessels (c) spleen (d) lymph nodes
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Skin covering the ________ has sweat glands but no hair follicles or sebaceous glands.
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Anatomy & Physiology