Skin color is not a good way to distinguish "races" of people because


A) it can be changed by environmental factors.

B) it is but one of many traits that vary within and between human populations.

C) it is not inherited.

D) it changes over a person's lifetime.


B) it is but one of many traits that vary within and between human populations.

Biology & Microbiology

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The pyrimidine bases are _______

A. cytosine, thymine, and uracil B. adenine and guanine C. adenine and thymine D. cytosine and guanine

Biology & Microbiology

Saturated fatty acids

1.contain carbon to carbon double bonds in their structure. 2.contain the maximum possible number of hydrogen atoms. 3.are soluble in water. 4.are very polar.

Biology & Microbiology

Identify the following reaction: H2O + CO2 H2CO3

a. Dehydration synthesis reaction b. Hydrolysis reaction c. Exchange reaction d. Reversible reaction e. Covalent reaction

Biology & Microbiology

Approximately 1 out of every 2,500 Caucasians in the United States is born with the recessive disease cystic fibrosis. According to the Hardy-Weinberg equilibrium equation, approximately what percentage of people are carriers?

a. 2% b. 4% c. 96% d. 10% e. 0.08%

Biology & Microbiology