Like many insects, some amphibians undergo ________ in their life cycle as they have distinct larval and adult stages
A) aquatic development followed by terrestrial existence
B) development in a nest followed by flight
C) metamorphosis
D) alternation of generations
Ans: C) metamorphosis
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Heterosis is _______
A. the combination of lethal alleles due to inbreeding B. an increased vigor of hybrids resulting from the crossing of inbred strains C. a measurement of the variance due to environmental factors D. the result of homozygosity of multiple, dominant, detrimental alleles.
Hydrogenation is a chemical process that
a. turns liquid oil to solid fats. b. turns amino acids into proteins. c. turns DNA into lipids. d. creates stable alternative energy sources. e. does none of these.
A small group of white-tailed deer cross the frozen water of Lake Michigan and establish a population on a remote island. This small group of deer can best be described as
A. renegades. B. a founding population. C. a newly formed species. D. a new gene pool.
A millicurie, a unit of radioactivity, is
(a) a tenth of a curie. (b) a hundredth of a curie. (c) a thousandth of a curie. (d) a millionth of a curie.