An escalation of attack and defense traits is the only possible outcome of an evolutionary arms race.

a. true
b. false


Ans: b. false

Biology & Microbiology

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Discuss the difficulties in studying the genetics of human behavior traits

What will be an ideal response?

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Cholesterol is essential for keeping cell membranes from thickening

Indicate whether the statement is true or false.

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The "big bang" refers to

A. an event marking the beginning of the universe. B. the extinction of the dinosaurs. C. the inevitable end of the universe. D. the collision of the first galaxies forming the universe as it is today. E. the inevitable death of large stars.

Biology & Microbiology

Cellulose is a (n)

a. indigestible fiber. b. simple carbohydrate. c. energy-yielding nutrient. d. animal polysaccharide.

Biology & Microbiology