Compositional layers are determined by their components, while mechanical layers are determined by their physical properties.
As you stated before, cellulose is found throughout the cell walls of plant cells. Cellulose makes cell walls rigid, so that would indicate that cellulose is a carbohydrate.
Centipedes are carnivores, they use venom to kill their prey. They are preyed upon by birds, toads and shrews.
Due to extreme (too much) cell division, a mutation of cells will occur and that is the cancer within humans.
False. because the more they get older the less strength and energy they have
