Roughly how many different species (of plants, animals, bacteria, etc.) do you think scientists have identified?

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10 million
500,000
two million
10,000
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Vegetation that grows along the floors of tropical and temperate forests is called undergrowth. how is the undergrowth of a tropical rain forest most likely to differ from the undergrowth of a temperate forest? a. a tropical rain forest's undergrowth most likely experiences periods of dormancy during colder weather. b. a tropical rain forest's undergrowth most likely experiences periods of dormancy during rainy weather. c. the undergrowth of a tropical rain forest most likely requires less sunlight. d. the undergrowth of a tropical rain forest most likely requires more sunlight.

What organelle other than the nucleus houses dna in a eukaryotic cell?

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.