Coal is

a. a nonrenewable resource
b. a fossil fuel
c. rich in stored carbon energy
d. organic remains of ancient seedless plants
e. all of the above are true


Answer: e

Biology & Microbiology

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Biology & Microbiology

When performing gene therapy, DNA can be introduced into human cells by using genetically engineered ____, which

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Which of the following is a hominin?

a. chimpanzee b. Australopithecus c. baboon d. chimpanzee and Australopithecus e. chimpanzee, Australopithecus, and baboon

Biology & Microbiology

A human cell with a total of 23 chromosomes is:

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Biology & Microbiology