There is strong evidence that archaic Homo sapiens migrated to the Americas.

a. true
b. false


Answer: b. false

Biology & Microbiology

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The radioactive decay of 14C produces ____

a. carbon 12 b. carbon 13 c. more carbon 14 d. nitrogen 14 e. oxygen 14

Biology & Microbiology

Based on composition similarities, actin can be divided into two major groups: the muscle-specific actins (________-actin) and nonmuscle actins (________- and ________-actin)

Fill in the blank with correct word.

Biology & Microbiology

An unexpected change in a cell's genetic makeup is called a ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Scientists estimate that about ________ of the world's eukaryotic organisms have been discovered and given scientific names.

A. 15% B. 40% C. 5% D. 90% E. 1%

Biology & Microbiology