I'm at a loss between A & C but I'm not sure, I'd go with A
Answer:
Which term describes a group of cells that are similar and work together?
Tissues are group of similar cells and work together to perform a specific or particular function
Explanation:
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Two important underlying principles of the NIMS are flexibility and standardization.
A contractile vacuole works just the same as the name suggests, in that it expands and contracts. The point of the contractile vacuole is to pump water out of the cell through a process called osmoregulation, the regulation of osmotic pressure. It occurs in freshwater protists, but mainly in the kingdom Protista as a whole.
The two groups differ in the composition of the cell wall and the lipids in the cell membrane. 3. ... Organelles contribute to efficiency in eukaryotic cells because they concentrate the biochemicals needed for chemical reactions so that the reactions proceed more rapidly.