Which of the following serve as examples of morphological convergence?
a. sharks, penguins, and porpoises
b. panthers and tigers
c. apes and monkeys
d. sharks, skates, and rays
e. mice, rats, and gerbils
a
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The transgenic mouse models for amyotrophic lateral sclerosis (ALS) and Huntington disease show symptoms similar
to those seen in humans affected by these conditions. a. True b. False
Suppose an organism can alternate between aerobic and anaerobic respiration. If it had to use anaerobic respiration exclusively, how many glucose molecules must it break down to generate the same ATP as it would in aerobic respiration?
A) 14 B) 6 C) 19 D) 1 E) 38
Which of the following do not contribute to the existence of life in the bottom of oceans?
What will be an ideal response?
Why should we expect to estimate the treatment effect of price on quantity sold to be so difficult in nonexperimental data?
A. Sales taxes create wedges between prices paid and revenue received by the firm. B. Firms vary their prices strategically in response to expectations of the resulting sales. C. Obtaining actual quantity information from sales records is difficult. D. Firms are not likely to keep detailed records of their prices.