Which of the following is least likely to be a

cause of extinction?
a. asteroid impact
b. human activity
c. adaptive radiation
d. continental drift
e. climate change


C

Biology & Microbiology

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Evaluate the following statement about heat: Heat is released in all energy conversion processes as a byproduct.

A. False, heat is released in most but not all energy conversion processes. B. False, heat is never released as a byproduct. C. True. D. False, heat is released as a byproduct only in a few energy conversion processes.

Biology & Microbiology

Pairs of chromosomes that are similar in size and genetic composition are

a. chromatids. b. diploid. c. haploid. d. chromatin. e. homologous chromosomes.

Biology & Microbiology

Which of the following statements is NOT true

about asteroids? a. They have had little influence on the history of life. b. They do not emit light and are difficult to see. c. Their impacts have produced craters visible in satellite images. d. One asteroid impacted our planet just prior to the mass extinctions at the K-T boundary. e. An asteroid impact releases an enormous quantity of energy.

Biology & Microbiology

Name the substance that serves as the hereditary material in eukaryotes and prokaryotes

A) DNA or deoxyribonucleic acid B) protein C) lipid D) RNA or ribonucleic acid E) carbohydrate

Biology & Microbiology