List the three common structures of a protist, animal, and plant cell

Protist, animal, and plant are all eukaryotic cells and thus they all contain a nucleus and other membrane-bound organelles in them

Three structures which are common in potist, animal, and plant cell are:

Cell membrane: It is usually a lipid bilayer structure which separates the cellular content from the surrounding environment.

Nucleus: It is double membrane-bound organelle present in all eukaryotic cells. It contains the genetic material of the cell.

Ribosome: It is a small particle made up of RNA and protein. It is generally present in multiple numbers in the cytoplasm of all living cells. It provides the site for protein synthesis.

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation:

hammurabi rulers

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