In a tetraploid species, a euploid individual would have __ sets of chromosomes.
A. 2
B. 4
C. 6
D. 8
E. 2n+2
B. 4
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The primary ecological function of fungi is that of ________.
A. consumer B. decomposer C. pathogen D. producer
Mammals are diphydonts, which means that they have:
a. teeth that can be replaced throughout their lifetime. b. two kinds of keratin that form into distinct kinds of hairs. c. two different types of teeth that perform different functions. d. two sets of teeth in their lifetime.
A locus is ____
a. an alternate form of a gene b. the chromosome location of the centromere c. the location of a gene on a chromosome d. a mutation of a gene to an alternate state e. the site of crossing over
A population of zooplankton is exposed to a small number of predatory fish that feed on the larger-sized (adult) zooplankton. Based on the principles of evolution by natural selection, which of the following would be most likely?
a. Adult zooplankton will start to reach sexual maturity when they are still relatively small b. The predatory fish will evolve smaller mouths so that they do not drive their prey to extinction. c. Evolution is unpredictable, and all outcomes are equally likely. d. The zooplankton will become sexually mature at larger sizes. e. The predatory fish will evolve poor eyesight so as to preserve their food supply.