Ocean currents ____ in the Northern Hemisphere and ____ in the Southern Hemisphere.
A. circulate counterclockwise; circulate clockwise
B. move west to east; move east to west
C. move east to west; move west to east
D. circulate clockwise; circulate counterclockwise
E. undulate along a line northeast and southwest; undulate along a line southeast to northwest
Answer: D
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Organisms that require increased pressure for optimum growth are called
A. osmotolerant. B. osmophilic. C. barotolerant. D. barophilic.
You are investigating the life history of a previously unknown species of spider, when you discover an unusual fact; it seems that these spiders carry their fertilized eggs on their abdomen until they mature, at which point their offspring hatch, and devour their parent. Which term best describes this species’ reproductive strategy?
a. many offspring b. few offspring c. semelparity d. iteroparity
When only one nucleotide base is involved in a mutation, this is called
A. chromosomal mutation. B. template error. C. point mutation. D. nonsense codon.
Routine activities and energy conservation are controlled by the:
A) thalamus. B) peripheral nervous system. C) parasympathetic division. D) sympathetic division.