A .Structurally support the cell
B.Store nutrients for the cell to consume
C. Produce ATP to provide energy for the cell
D. Selectively allow some materials into the cell
It would be A
The Cell membrane is like a wall it allows things to pass though regulated.
Hope that helps
<span>B. A producer supplies energy for the consumers in the ecosystem.
In science, a producer is an organism that can create it's on food and serves as food for a consumer. An example of a producer could be seaweed, or algae.
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Compound microscope im pretty sure is the answer!
