Uni cellular organisms remove their waste directly through the cell membrane by the process of diffusion while multi cellular organisms remove waste from excretion
Answer:
may be D is the right answer because
electrons microscope it not easy to handle and so expensive but light microscope is easy to handle and less experience
Answer:

Explanation:
As you should know, in the previous question, Anaphase comes AFTER Metaphase, not "before".
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Answer:
I believe the answer is A. An organ system supports all parts of the organism.
Explanation:
This answer makes the most sense to me.