A population that initially grows rapidly, then slows, and eventually stabilizes close to the carrying capacity of the environment exhibits ________ population growth
Fill in the blank(s) with correct word
logistic (or S-shaped)
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Evaluate the following statement: Larger organisms do not generally have larger cells than smaller organisms; instead, they have more cells. Is that statement true or false? Explain briefly.
What will be an ideal response?
Consider the cell cycle of a human cell. During G2, what is the state of the homologous chromosomes?
A. The homologous chromosomes have been pulled to their respective poles by the spindle apparatus. B. The homologous chromosomes have not been replicated yet. C. The homologous chromosomes are lined up on the equator of the cell. D. The homologous chromosomes are now in the haploid or n condition. E. The homologous chromosomes have all been copied through DNA replication and are beginning to condense.
A recessive allele on the X chromosome is responsible for red-green color blindness in humans. A woman with normal vision whose father is color-blind marries a color-blind male. What is the probability that a son of this couple will be color-blind?
A) 0 B) 1/4 C) 1/2 D) 3/4 E) 1
A population's environment sometimes changes too quickly for natural selection to adapt the individuals in the population to the environment. In these situations:
a) the rate of somatic mutations increases. b) the individuals' instincts can no longer be trusted to elicit behavior that maximizes reproductive success. c) evolution ceases to operate in the population. d) mutation occurs so that extinction will not occur. e) disruptive selection will occur.