What structures does micro algae, elodea, maple leaf, an root hair have in common

The structures they have in common are nucleus, vacuole, cell wall and membrane.

Explanation:

The structures they have in common are nucleus, vacuole, cell wall and membrane and these structures perform different functions.

The nucleus is a membrane bound organelles found in the cell that regulate all cellular activities like metabolism.

Vacuole is a structure found in the cell cytoplasm which is use for storage, digestion, excretion and so on.

Cell wall is a layer surronding the cell to give rigidity, protect and give structural support to cells.

Membrane is a structure that separate the internal of the cells from the exterior or environment.

i think its both a and b