Scientists determined that African elephants are the closest living relatives of the woolly mammoth based on fossil

evidence, because DNA cannot yet be extracted from fossils of extinct species.



a. True
b. False


ANSWER: False

Biology & Microbiology

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In order for homeostasis to be maintained a(n) ________ must detect a specific stimulus

a. affector b. sensory receptor c. gland d. sensory affector e. effector

Biology & Microbiology

Bioinformatics includes _____. I. using computer programs to align DNA sequences II. creating recombinant DNA from separate species III. developing computer-based tools for genome analysis IV

using mathematical tools to make sense of biological systems A) I and II B) II and III C) II and IV D) I, III, and IV

Biology & Microbiology

Which biome is characterized by plants whose leaves turn color and drop off in the autumn?

A. Coniferous forest B. Tundra C. Temperate deciduous forest D. Tropical rain forest E. Chaparral

Biology & Microbiology

It's the ninth inning, and the bases are loaded. As the pitcher winds up to throw the ball, how does each tissue in his arm contribute to this critical pitch? The ________ of his fingers grips the ball. His ________ sends instructions that trigger his ________ to contract. His ________ provides stability and transmits the force produced.

A. epithelium; ectoderm; mesoderm; endoderm B. ectoderm; ectoderm; mesoderm; endoderm C. connective tissue; nerve tissue;  muscle tissue; epithelial tissue D. epithelial tissue;  nerve tissue;  muscle tissue; connective tissue

Biology & Microbiology