Rats are responsible for eating or fouling

approximately ____ percent of our total food
production.



a. 5
b. 10
c. 15
d. 20
e. 25


E

Biology & Microbiology

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ATP is a good energy currency for cells because it has a(n) _____________ amount of Gibbs free energy

A. very low B. intermediate C. very high

Biology & Microbiology

__________ or __________ extend from many prokaryotic cells and serve in attachment and motility

ANSWER: Pili; flagella Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Four of the following statements are true of predator-prey coevolution. Which one is FALSE?

a. Each species exerts selection pressure on the other. b. Predators are selective agents that favor improved prey defenses. c. Prey with better defenses are selective agents that favor better predator hunting skills. d. Coevolution only occurs in animals and is usually seen after one reproductive generation. e. Camouflage, warning coloration, and mimicry are all examples of coevolution tactics.

Biology & Microbiology

The dinosaurs are thought to have gone extinct due to an asteroid strike. How would this impact on

population growth be described? What will be an ideal response?

Biology & Microbiology