What were the most direct ancestors of modern plants?

a. cyanobacteria
b. fungi
c. green algae
d. sponges


Ans: c. green algae

Biology & Microbiology

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In a neuron at rest, the membrane is most permeable to

A. potassium. B. sodium. C. chloride. D. calcium. E. magnesium.

Biology & Microbiology

Which of the following statements concerning G protein is FALSE?

a. Its subunits can separate. b. One subunit is a GTPase. c. One subunit binds GTP. d. One subunit binds GDP. e. One subunit binds ATP.

Biology & Microbiology

An isolate of a mutant bacterium appears to grow more slowly than the wild-type population from which it was isolated

Further studies showed that the slower growth was due to a markedly reduced DNA polymerase I activity. From this information, one would expect that this organism would also be deficient in the activity of DNA A) excision repair. B) recombination. C) transcription. D) translation. E) unwinding.

Biology & Microbiology

Which word best describes the thalamus?

A) processor B) reflexor C) regulator D) transmitter

Biology & Microbiology