What is the period of time when a female will accept the male for breeding?
a. gestation c. estrus
b. conception d. parturition
C
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Perhaps the greatest hazard of working with electricity is the ____________________.
Fill in the blank(s) with the appropriate word(s).
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Single base changes in the DNA that may vary between people are called ____________________
Fill in the blank(s) with correct word
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Dividers are called _______
A. points B. pairs C. compus
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What effect is ozone depletion having on the environment?
A. increased ground level ozone (smog) B. reduced marine life C. reduced crop fields D. all of the above
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