Bacteria and fungi that secrete enzymes into the surrounding environment to break down wastes and dead organic matter are ________
Fill in the blank(s) with correct word
decomposers
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In which of the following ways are archaeans similar
to eukaryotic cells? a. size b. shape c. histones d. DNA polymerases e. presence of operons
The use of a molecular clock may be used to indicate relatedness and evolutionary time
A. if nucleic acid changes occur at a fairly constant rate. B. but is more strongly supported when it can be compared with the fossil record. C. if nucleic acid changes are neutral and not tied to adaptation. D. All of the choices are correct.
Like the kidney, a dialysis machine leaves what in the blood?
What will be an ideal response?
Which of the following types of microbes might be found in a boiling hot spring?
A. hyperthermophiles B. phototrophic bacteria C. methanogens D. non-thermophiles E. halophiles