In nature, organisms with characteristics that enhance survival are more likely to survive and reproduce than variants that lack desirable traits. This is known as

A. artificial selection.
B. natural selection.
C. mutagenesis.
D. None of the above is correct.


Ans: B. natural selection.

Biology & Microbiology

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Authentication technique that rely on personal biological traits are called

A) Interoperability B) Intangibles C) Return on investment D) Biometrics

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Based on your knowledge of cellular and viral processes, which of the following would be (an) appropriate target(s) for antiviral drugs?

A) integrases B) aminoacyl-tRNA synthetases C) ribosomes D) aminoacyl-tRNA synthetases and ribosomes

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Which of the following scenarios leads to the highest level of lac operon expression?

A. high glucose levels, lactose absent B. low glucose levels, lactose absent C. high glucose levels, lactose present D. low glucose levels, lactose present

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Physiological changes in ectotherms that change their temperature tolerance as the seasons change

from winter to summer are called

a. estivation. b. hyperthermia. c. thermal acclimatization. d. hypothermia. e. hibernation.

Biology & Microbiology