In science, a theory is defined as
a. a speculative guess.
b. a hypothesis.
c. an explanation that is well documented and
consistent with the evidence.
d. a description of a phenomenon for which
there is no explanation.
e. a personal conviction.
C
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Flimmer filaments
A. function to move cells on solid surfaces. B. are components of all eukaryotic flagella. C. permit flagella to pull rather than push the cell. D. None of the choices are correct.
The specific parts of foreign proteins that the immune system recognizes and "remembers" are called ________
A) receptor sites B) binding sites C) antibody sites D) antigenic sites E) None of the above.
European kestrels feed on Microtus voles, with the "kill" rate, defined as the number of prey taken during the breeding season, as linearly proportional to the density of Microtus. This type of functional response is referred to as
A) Type I. B) Type II. C) Type III. D) Type IV.
The most diverse, successful, and familiar group of plants today are the:a
gymnosperms. b. bryophytes. c. ferns. d. angiosperms. e. lycopods.