What is/are the variable structure(s) of a nucleotide?
A) the phosphate group
B) the sugar
C) the base
D) the sugar and the base
Answer: D
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Which is not a common method of sampling? a. Counting all individuals in the region
b. Mark-recapture sampling. c. Counting individuals in a representative area. d. Observing evidence of an organism's presence in an area.
The skull of the chimpanzee and human are most
closely related a. as 48-hour embryos. b. as adults. c. as adolescents. d. as infants. e. never; they are not structurally close.
When a founder population has a small gene pool, evolutionary change is more likely to be rapid than if the founder population has a large gene pool
Indicate whether the statement is true or false
Which of the following is not a genus of Betaproteobacteria?
A) Bordetella B) Chlamydia C) Leptothrix D) Thiobacillus