Active transport is the homeostatic process that moves particles against a concentration gradient.
Answer:
Correct answer is A
Explanation:
Cell theory is a theory, not a law because the cell theory does not have enough support to become a law.
When scientists try to use the explanation of the natural world to understand patterns, they are making PREDICTIONS about natural events. For example, volcanic eruptions.
D because it makes more sense
Answer:
The answer is
The digestive system excretes a solid waste and the excretory system excretes a liquid waste.
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