Answer:
D.) Stimulus is the correct answer.
An organism's trophic level refers to the food chain position that it occupies. Producers always occupy the Trophy level 1, Primary Consumer occupies the Trophy level 2, Secondary Consumer has the Trophy level 3 and the Tertiary level fills in the Trophy level 4.
Answer:
The main four types of reactions are direct combination, analysis reaction, single displacement, and double displacement.
Explanation:
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Answer:
the example Is that if we see a plant it is made up of cells
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