Marsupials:
A. are only found today in Australia.
B. lay eggs.
C. nurse their young.
D. may reproduce via asexual reproduction.
C
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Classical conditioning such as the salivating of Pavlov's dog in response to a metronome is based on a(n)
A. operant condition. B. sign stimulus. C. involuntary response. D. dishabituation. E. None of the choices are correct.
This cell would be classified as a prokaryote because:
1.It has a flagellum.
2.It has a cell wall.
3.There is no nuclear membrane.
4.It is oval in shape.
The central nervous system is enclosed by membranes or meninges called the
A) dura mater, alma mater, and pia mater. B) fore, mid, and hind meninges. C) dura mater, pia mater, and arachnoid. D) pleura, parietal, and arachnoid. E) glial, Schwann, and interstitial.
Transpiration pulls water up a plant because of two mechanisms: ________ describes water molecules sticking together and ________ describes water molecules sticking to the walls of the xylem
A) cohesion... adhesion B) adhesion... cohesion C) adhesion... gravity D) gravity... cohesion