Only in judging human behaviors does the concept of
__________ supplant adaptation.
a. self-sacrifice
b. altruism
c. judgment
d. morality
e. indirect selection
Answer: d
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Although an orphan, Ian is also Jewish. If both he and Sylvia were carriers, what would be their chances of having a Tay-Sach's child?
a. 3 out of 4 (75%) b. 2 out of 4 (50%) c. 1 out of 4 (25%) d. Not enough information is given to make this type of prediction.
The process of fossilization typically begins when an organism or traces of it ____
a. settle on the seafloor b. are pressurized under the weight of sediment c. crystallize into minerals d. are saturated with groundwater e. become covered with sediments, mud, or ash
What substance accumulates in the blood of people with galactosemia?
A. Galactose B. Glucose C. Lactose D. Galactose-1-phosphate E. UDP galactose
The bacterium E. coli swims in a straight line, called a ________, for a few seconds; then it stops, tumbles, then swims away in a new direction.
Fill in the blank(s) with the appropriate word(s).