The key point in Darwin's proposal is that the ________ imposes the conditions that determine the direction of selection.
A. gene
B. parent
C. environment
D. individual
Answer: C
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The end results of alcoholic fermentation are
a. ethanol and carbon dioxide. b. ethanol and oxygen. c. sugar and carbon dioxide. d. sugar and oxygen.
The chromatids detach from one another and
become visibly separate chromosomes during a. anaphase. b. metaphase. c. interphase. d. prophase. e. telophase
Receptors on every T cell detect foreign antigens on cells of the body by their association with the ________ on the surface of the infected cells of the body.
A) CD8 B) antibodies C) membrane attack complex D) CD4 E) major histocompatibility (MHC) molecule
The best classification system is that which most closely _____
A) unites organisms that possess similar morphologies B) conforms to traditional, Linnaean taxonomic practices C) reflects evolutionary history D) reflects the basic separation of prokaryotes from eukaryotes