Predators can drive their prey to extinction unless the prey has

A. the ability to turn the tables on the predator and become predators themselves.
B. the opportunity to stop the competition between them for resources.
C. better genes than the predator.
D. refuges in which to hide.


Answer: D

Biology & Microbiology

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Use the following study to answer the following question(s): A current trend among professional baseball players is to wear braided titanium necklaces. The titanium reportedly regulates the flow of energy through the body. The player wearing the necklace then shows improved strength, tires less, and recovers more quickly.Which of the following would be the strongest evidence for or against the necklace's effectiveness?

A. A bar graph illustrating the satisfaction levels of the players who wear the necklace B. A bar graph comparing batting averages of the players who wear the official titanium necklace and those who were unknowingly wearing a fake titanium necklace C. A bar graph comparing the percentage of players who wear the necklace with the percentage of players who do not wear the necklace D. A scatter plot showing days on the disabled list and percentage of players who do or do not wear the necklace

Biology & Microbiology

H2S and NH3 may be used by some prokaryotes as energy sources

Indicate whether this statement is true or false.

Biology & Microbiology

Viral infections are not considered a risk factor for autosomal trisomy because a virus cannot affect human

chromosome arrangement. a. True b. False

Biology & Microbiology

Charles Darwin called choosing a mate based on its color or some other characteristic:a

sexual selection. b. gamete selection. c. sexual orientation. d. gametic preference. e. postzygotic selection

Biology & Microbiology