Multicellular colonies of plant cells adhere to each other primarily by , whereas multicellular colonies of animal cells are typically held together by . fusion of cellular membranes;

A. cell walls interlocking cellular shapes; large, calcified capsules
B. interlocking chloroplasts; interlocking mitochondria
C. cell walls; fused cellular membranes
D. cell walls; proteins Submit

Answer is option "D"

Explanation:

A cell wall is a strong, protective structure that surrounds a plant cell. A cell wall can be up to 800 times thicker than the plasma membrane. It's composed largely of cellulose, a polysaccharide sugar that provides strength to the cell wall. If you've ever noticed how strong the bark of a tree is, that's because this bark is composed of dead cells with really tough cell walls.Proteins are long chains of amino acids. In other words, amino acids are like the links in a chain. The chain itself represents the protein molecule. Protein chains are then twisted and folded together in specific ways to create certain molecules.Hence, the right answer is option D " cell walls; proteins Submit".

It explains why rocks appear in layers