A weed that exhibits resistance to an herbicide ________.
A. is less likely to pass on the gene to the next generation
B. inherited the gene that made it resistant to the herbicide
C. developed the resistance in response to the herbicide
D. mutated when exposed to the herbicide
Answer: B
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Many human activities influence the amount of CO2 in the atmosphere. Why? Select all that apply
A. Logging removes trees that would otherwise use CO2 during photosynthesis. B. Burning vegetation (to make way for croplands) releases CO2 into the atmosphere. C. Using fossil fuels to power vehicles releases CO2 into the atmosphere. D. There is no evidence that human activities contribute to atmospheric CO2 levels.
There are two types of pepper moths. The black morph is camouflaged against the dark bark of a bare tree. The light morph is difficult to detect on trees that are covered with lichen
Environmental conditions that support substantial lichen growth would result in selection for: A. the dark colored morph of the pepper moth B. the light colored morph of the pepper moth C. Moths do not eat lichen, so its growth would have no effect on selection for one color over the other. D. Color would not be selected for or against, but those moths that excrete chemicals to destroy the lichens would be selected for.
Habitats: Oral Microbiota
What will be an ideal response?
The Calvin cycle in C3 plants occurs in ________ cells, whereas the Calvin cycle in C4 plants occurs in the ________
Fill in the blank with correct word.