What is the network of nerves that radiates out from the brain and the spinal cord part of?
A) the central nervous system
B) interneurons
C) the peripheral nervous system
D) neurotransmitters
C
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Why do electron microscopes have the ability resolve such small objects?
a. Because electrons have a much shorter wavelength than the photons of visiblelight b. Because electrons have a much longer wavelength than the photons of visiblelight
A behavioral pattern can be triggered by a(n):
a. circadian rhythm. b. environmental stimulus. c. positive reinforcement. d. psychological stimulus. e. sign stimulus.
The classifications gram-positive and gram-negative are based on ________ of the bacterial cell wall
Fill in the blank(s) with correct word
The efficiency of energy transfer between trophic-levels averages about
A. 33%. B. 10%. C. 1%. D. 25%. E. 0.1%.