The mode of natural selection in which one extreme phenotype is fittest and the environment selects against the others is
A. Uniformitarianism
B. Stabilizing selection
C. Disruptive selection
D. Artificial selection
E. Directional selection
E. Directional selection
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A millimeter is equivalent to how many nanometers?
A) 1,000 B) 10,000 C) 100,000 D) 1,000,000
Mendel's pea plants made good experimental subjects because they ____
a. exhibit continuous variation b. exhibit a variety of inheritance patterns c. exhibit discontinuous variation and complete dominance d. are sterile e. have many complex traits that are easy to research
The body's "thermostat" is located in the ____
a. heart
b. spinal cord c. thalamus d. hypothalamus e. skin
Which of the following diseases is NOT caused by viruses?
the common cold and influenza smallpox and mononucleosis polio and rabies AIDS and warts diabetes