Which of the following is the most likely explanation for why the human brain is capable of so much more than what would be required for evolutionary fitness?
A. The additional capabilities are by-products
of what was necessary for evolutionary
fitness.
B. The additional capabilities were necessary
for survival at one time.
C. A larger brain means that additional
capabilities will follow.
D. None of the answer options is correct.
A
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The sliding filament model
a. supplies the energy needed for muscle contraction. b. provides a flexing action for the muscle fibers. c. describes the action of the actin and myosin in a muscle cell. d. explains muscle fatigue. e. only explains how muscles contract, not how they relax.
There is a strong positive correlation between rising atmospheric CO2 concentrations and ________
Fill in the blank(s) with correct word
Underground stems with fleshy leaves used for storage of water and food are known as:
a. tendrils. b. spines. c. bulbs. d. buds. e. stipules.
Which molecule serves as the template during translation?
A) DNA B) mRNA C) tRNA D) polymerase