Refer to Figure 10-2. The chromosome complement of item 6 in the life cycle is:
a. twenty.
b. haploid.
c. diploid.
d. forty-eight.
e. four.
B
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The separation of genes during the formation of the sperm and egg and the reunion of genes at fertilization is explained by the behavior of chromosomes in a form of cell division called meiosis
a. True b. False Indicate whether the statement is true or false
When you bring your hand to your shoulder, your biceps muscle ____ and your triceps muscle ____
a. contracts; relaxes b. relaxes; contracts c. contracts; contracts d. relaxes; relaxes e. lengthens; shortens
Members of the subphylum __________ lack antenna but possess unique mouthparts, which are not
mandibles. A. Crustacea B. Uniramia C. Chelicerata D. Chilopoda E. Arachnida
In a human population with a high proportion of prereproductive individuals, the population will:a
continue to increase even if the fertility rate is at replacement levels.
b. decline even if the fertility rate is at replacement levels. c. increase only if the fertility rate is above replacement levels. d. decline only if the replacement level fertility rate changes. e. reach ZPG sooner than with a low proportion of prereproductive individuals.