Darwin's observations led to his proposal that evolution occurred due to
a. random chance.
b. climatic changes.
c. natural selection.
d. migration.
e. interaction of species.
C
Biology & Microbiology
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Explain why there is a difference in the mechanism by which an animal cell and a plant cell accomplishes cytokinesis
What will be an ideal response?
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Accumulations of cells that divide uncontrollably are called ______
a. oncogenes b. proto-oncogenes c. neoplasms d. checkpoints e. descendant tumors
Biology & Microbiology
The popular drug Ecstasy is related to
1.heroin. 2.cocaine. 3.codeine. 4.amphetamine. 5.serotonin.
Biology & Microbiology
Recognition proteins, such as those embedded on the surface of red blood cells, are composed of
A) glycoproteins. B) phospholipases. C) nucleic acids. D) steroids.
Biology & Microbiology