A one-way relationship in which one species benefits
at the expense of another is
a. commensalism.
b. competitive exclusion.
c. parasitism.
d. obligate mutualism.
e. a neutral relationship.
Answer: c
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Which of the following is considered to be the most basic living unit?
a. molecule b. organelle c. organ system d. tissue e. cell
The second law of thermodynamics states that ____
a. the energy of the universe is a constant b. energy can be neither created nor destroyed c. energy disperses spontaneously d. energy transformations create a more orderly universe e. energy and matter are the same thing
Mendel continued some of his experiments into the F2 or F3 generation to _____
A) obtain a larger number of offspring on which to base statistics B) observe whether or not a recessive trait would reappear C) observe whether or not the dominant trait would reappear D) distinguish which alleles were segregating
Antivenin is a(n)
A) antitoxin used to treat exposure to a venom. B) antigen produced from a virus. C) antiserum produced from hybridomas. D) vaccine made toward the endotoxin of a virus. E) vaccine produced against the endotoxin of a bacterium.