All living organisms use DNA as the genetic material
Indicate whether the statement is true or false
TRUE
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All EXCEPT which of the following is a possible
bottleneck for a population? a. contagious disease b. widespread pesticide application c. habitat loss d. protective endangered species legislation e. persistent drought
What amount of the fluid removed from the blood is eventually returned to the blood?
a. about 59 percent b. less than 90 percent c. almost 99 percent d. a mere 0.9 percent e. exactly 9 percent
The first step in testing an hypothesis is to
a. perform an experiment. b. make a prediction. c. test a prediction. d. analyze data. e. report results.
Phenotype depends on:
a. the effects of the environment. b. genotype. c. the effects of both the environment and genotype. d. natural selection.