Which of these body systems contribute to homeostasis?

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

Which list is in order from simplest to most complex? a bacteria - virus - plant - protist b protist - bacteria - virus - plant c virus - bacteria - plant - protist d virus - bacteria - protist - plant