Genetic drift refers to ________
A) a change in the overall distribution of a population
B) a change in the frequency of genes in a population because of tectonic plate movement
C) a change in the frequency of a population's genes because of mutation
D) a change in the frequency of a population's inherited trait brought about by a chance event
E) a change in the frequency of a species' occurrence
Answer: D
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Why is crystallization such an important part of the rock cycle?
A) Melting occurs as a result of crystallization. B) Metamorphism occurs as a result of crystallization. C) Volcanoes are made because of crystallization. D) In order for igneous rocks to be made, crystallization must occur.
Solar tides are: a. forced
b. only 1/10th as strong as lunar tides. c. centered on the equator year round. d. as variable in position as lunar tides.
Any isolated group of people develops a language of its own over time
Indicate whether the statement is true or false.
What is an advantage of using scientific names?
a. There is only one name per species. b. They are universal to all languages. c. They can indicate the relatedness of organisms. d. All of these choices