Two species of snails are physically unable to mate. This is an example of
A) mechanical incompatibility.
B) ecological isolation.
C) behavioral isolation
D) geographic isolation.
E) temporal isolation.
A
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A yellow jacket, an insect in the order hymenoptera, stung me. A wasp, an insect in hymenoptera, stung me. A hornet, an insect in hymenoptera, stung me. I see a pattern. All insects in this order must have stingers. What type of reasoning does this represent?
A. inductive reasoning B. deductive reasoning C. reductionism D. comparative reasoning
Which of the following is NOT an example of
the results of mitosis? a. a pair of identical twins b. a group of rooted plant cuttings from a single plant c. the cells produced by the asexual reproduction of a single-celled organism d. production of a gamete e. healing of a wound
The human genome contains about how many genes?
a. 1,000 b. 10,000 c. 20,000 d. 100,000 e. 200,000
In humans, the allele for red-green color blindness is X-linked and recessive (Xr; the dominant allele is called XR). A man with normal color vision marries a color-blind woman who gives birth to a color-blind daughter
What can be inferred from this information? A) The woman is XRXr. B) The man must be a carrier for the color blindness allele. C) The daughter must be heterozygous. D) The man is probably NOT the father of the daughter.