Cell Membrane because it transport nutrients into the cells and also transport toxic substances out of the cell .
The organelle responsible for keeping the cell clean is the cell membrane.
Hi!
Rock pools are exactly what they sound like. They are rocky pools by the sea. They are usually found in the intertidal zone. During the occurrence of a high tide, they are filled with seawater. During low tide, they usually become/exist as separate pools.
Hope this helps, have a wonderful day/night!
Here's a chart. Not sure what your choices are though.