Poliovirus initially multiplies in the ________.
A. nasopharynx
B. intestine
C. central nervous system
D. lymphoid tissue
E. basal ganglia
Answer: D
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Lice and mites
A. are both arachnids. B. may both be spread by personal contact. C. are intestinal parasites. D. cause Lyme disease
You are given an embryo with eight cells and you carefully separate them and allow them to develop in separate containers. Each of the cells forms a complete embryo that develops normally into an adult animal. How would you categorize your animal?
A. It has indeterminate cleavage. B. It has determinate cleavage. C. It is a protostome. D. It is an annelid, mollusk, or arthropod. E. It has spiral cleavage.
Giant kelp is classified with the ________
a. water molds b. aquatic plants c. red algae d. protists
Sexual behavior and emotional expression are partially controlled by the
a. pineal gland. b. medulla. c. hypothalamus. d. thalamus. e. cerebrum.