The alcid species hunted to extinction was the:
a. common auk.
b. great puffin.
c. common murre.
d. great auk.
e. great skua.
D
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The advent of recombinant DNA technology made the sequencing of genomes possible
a. True b. False Indicate whether the statement is true or false
The constant region of an antibody molecule is
A) the binding site for antigens. B) part of the heavy chains only. C) similar in all antibody molecules. D) the binding site for two antigens.
Why are alternate theories to evolution not viewed as accurate by scientists?
a. There are no viable theories to evolution. b. Alternate theories to evolution do not include the process of natural selection. c. Alternate theories to evolution are not based on scientific evidence and cannot be verified through scientific means. d. Alternate theories to evolution are viewed as accurate by the scientific community at large.
If there are 1,000 metric tons of producers in an ecosystem, about how much of the energy in those producers will be available to secondary consumers in this ecosystem?
A) 100% B) 50% C) about 10% D) about 1% E) about 0.1%