Q: What is the ph level of neutral, pure water? Choices: - six and a half - five - six - seven A:
seven

(Question)
Q: Out of the four ways that allele frequencies of a population can be changed, which way is caused by individuals leaving or joining the population? Choices: - Allopatric speciation - spontaneous mutation - mass extinction - gene flow A:
(Answer)
gene flow

Ques: Q: Electrons flow through the electrolyte from the ________ to __________ electrode. Choices: - neutral; negative - negative; neutral - positive; negative - negative; positive A:
Ans: negative; positive

(Q).
Q: What term given to animals like reptiles is a synonym for ectothermic, which means that their heat comes from their environment? Choices: - warm-blooded - hot-blooded - thermal regulating - cold-blooded A:
(A).
cold-blooded

Ques:Q: What can lead to a loss of genetic variation within populations? Choices: - migration - adaptation - natural selection - genetic drift A:

Ans:genetic drift

Ques:Q: What is the major cause of outdoor air pollution? Choices: - electric lines - agricultural equipment - manufacturing industry - burning fossil fuels A:

Ans:
burning fossil fuels