Four of the five structures listed below are parts of

the same sense organ. Select the exception.
a. cochlea
b. cornea
c. sclera
d. choroid
e. fovea


Answer: a

Biology & Microbiology

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Which molecule is our primary source of

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A human autosomal recessive trait appears in 1 in 100 births. What percent of people are homozygous dominant for this trait?

A. 0.81 B. 0.10 C. 0.18 D. 0.90 E. 0.01

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Experiments testing the "good genes" model of sexual selection are notoriously difficult

One problem is to separate environmental factors associated with a particular father (e.g., brood care by father) from the effect of a father's genetics. Which of the following experimental designs solves this problem? a. randomize offspring environment by transplanting offspring to nests of different fathers b. obtain very large sample sizes to factor out fathers' environmental influ-ence c. use genetically identical fathers d. This problem cannot be solved. We have to work only with species in which the father contributes nothing but its genetics. e. A, B, and C.

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After consuming an antacid like Rolaids, ________.

A. HCl production would decrease B. the stomach would absorb water C. the pH of the stomach fluid would decrease D. the pH of the stomach fluid would increase

Biology & Microbiology