The most destructive activity of humans that has led to many extinctions is
A. predator control.
B. pesticide use.
C. biomagnification.
D. habitat destruction.
D. habitat destruction.
Biology & Microbiology
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Thermus and Deinococcus
A. survive in extreme environments. B. are both thermophilic. C. are both radiation resistant. D. both serve as the source of Taq polymerase.
Biology & Microbiology
An organism's observable traits constitute its _____
a. phenotype b. variation c. genotype d. pedigree
Biology & Microbiology
What is trypsin?
a. an enzyme in the small intestine that digests proteins. b. an enzyme in the stomach that digests protein. c. an enzyme in the oral cavity that digests starch. d. an enzyme in the small intestine that digests starch. e. an enzyme in the liver that breaks down toxins
Biology & Microbiology
Genetic engineering started with ____
a. bacteria b. viruses c. fungi d. plants e. animals
Biology & Microbiology