The area directly below the neritic zone is called:
a. abyssal plain.
b. ocean basin.
c. trench.
d. continental margin.
e. hadal zone.
D
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The probability of a couple having either a boy or a girl is ½. However, many families have more boys than girls and VICE VERSA. Why is the observed ratio of boys to girls in typical families different than the predicted ratio?
A. There is a large random sampling error due to the small size of families. B. There is a small random sampling error due to the small size of families. C. Humans are more heterozygous than is predicted by random sampling. D. The sex of each child is determined independently. E. Two of the answers are correct. There is a large random sampling error due to the small size of human families and the sex of each child is determined independently.
Which protein has been implicated in the development of Alzheimer's disease?
a. apolipoprotein A b. apolipoprotein M c. apolipoprotein G d. apolipoprotein B e. apolipoprotein E
Golden rice:
a) could help the 250,000 children each year who are at risk of blindness due to vitamin A deficiency. b) supplies more protein. c) grows without a husk, thereby reducing the processing required before it can be consumed. d) supplies more vitamin A in one serving than an individual needs in a full week. e) can make vitamin A without beta-carotene.
Select the postzygotic isolating mechanisms. (Check all that apply).A) Hybrids are sterile.B) Hybrids develop abnormally.C) Hybrids fail to become established in nature.D) Hybrids cannot be formed.
What will be an ideal response?