Which of the following brain regions helps regulate hunger and thirst?
A. cerebrum
B. cerebellum
C. thalamus
D. hypothalamus
E. medulla oblongata
D. hypothalamus
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Killed or inactivated vaccines are prepared by
A. passage of the pathogen through unnatural hosts or tissue culture. B. long-term subculturing of the microbe. C. treatment with formalin, heat, or radiation. D. removal of virulence genes from the microbe.
The nuclear lamina is
A) the sac that holds the genetic material. B) part of the nucleus that holds RNA. C) a fibrous layer that lines the inner face of the nuclear membrane. D) the site of protein synthesis.
Compared to modern humans, Neanderthals were ____
a. skinnier b. shorter c. more numerous d. more widely dispersed e. small brained
Each of the following is a function of membranes except
A) defining cell and organelle boundaries. B) sites for specific biochemical functions. C) information storage. D) regulation of transport. E) cell–cell communication.