Which of the following is NOT part of the body's first line of defense against microbial attack?
A) Stomach acid
B) Phagocytes
C) Skin
D) Lysozyme
E) Mucus
B
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Which is a hominin?
a. chimpanzees only b. australopiths only c. baboons only d. humans and australopiths e. chimpanzee, australopiths, and baboons
Melanin protects the skin from
a. desiccation. b. abrasion. c. ultraviolet radiation. d. infrared damage. e. invasion by bacteria
Which of the following components of the
dermis is incorrectly matched with its usual function? a. blood vessels; nutrient supply b. sweat glands; hormone secretion c. oil glands; lubrication of hair and skin d. hairs; insulation e. receptors; pain
What sensory modalities are used by the message receivers in honeybee waggle dance communication? (Check all that apply.)
A. visual B. chemosensory C. auditory D. autonomic E. proprioceptive