Eukaryotic cilia and flagella arise from which of the following cellular components?
a. nucleus
b. Golgi complex
c. centrioles
d. chromosomes
e. nucleolus
ANSWER: c
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Cheetahs have been through a genetic bottleneck; evidence for this is that
A. the body is long, thin, and graceful. B. these cats are members of an endangered species. C. there is very little genetic variability. D. little natural selection occurs in this species. E. they originally came from small areas of Africa.
Is Membrane 2 permeable to both molecules?
a. Yes b. No
In pedigrees, a male individual is symbolized as a ____________________. Fill in the blank(s) with the appropriate word(s)
Which of the following is NOT an adaptation for flight found in birds?
a) lightweight bones filled with air spaces b) many body structures reduced in size or absent altogether c) shelled eggs d) very efficient circulatory and respiratory systems e) all of these are adaptations for flight