In humans, the thirst center is located in the
a. adrenal cortex.
b. hypothalamus.
c. anterior pituitary.
d. glomerulus.
e. stomach.
Answer: b
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The latent phase in the viral growth curve and the lag phase of the bacterial growth curve are equivalent and represent the time it takes for the virus or bacterium to adapt to the culture conditions and begin growing
Indicate whether the statement is true or false.
Pigments, specifically, function for
photosynthesis by which of the following?
a. electron excitation and energy emission b. reflection of light energy c. splitting water into hydrogen and oxygen d. capturing light e. none of these
These four adaptations (cuticle, vascular tissue, seeds, and flowers) are key characters that define four major modern plant groups. Complete the following table using the key provided.
Unlike eukaryotic cell division, in bacterial cell division
a. chromosomes are not separated before cell division. b. chromosomes are always replicated to several copies before cell division takes place. c. the DNA itself is involved in the mechanism for segregating chromosomes. d. chromosomes are not specifically separated, so many cells are anucleate or dinucleate. e. a protein apparatus actively pulls chromosomes apart before division.