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