Which of the following is a cornerstone of the science of ecology?
A) Environmentalism
B) Darwin's theory of natural selection
C) Economics
D) Populations
B
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First division nondisjunction will yield a gamete with an extra chromosome, whereas second division nondisjunction will yield a gamete missing a chromosome
A. true B. false
Natural selection that increases the frequency of a favorable allele is called _____
A. positive selection B. balancing selection C. sexual selection
DNA is found in all the following except:
A. mitochondria of animals. B. mitochondria of plants. C. chloroplasts of plants. E. many eukaryotic viruses. F. ribosomes of eukaryotes.
The anterior pituitary gland secretes ________. In men, this hormone causes the cells that will become sperm to be more sensitive to the effects of testosterone
Fill in the blank(s) with correct word