The answer is bacterial cell
Because the stomach is lined by a mucous membrane (the gastric mucosa)
Hibernation is a way animals conserve energy to survive adverse weather conditions or lack of food.
Answer:
Oxygen is a colourless, odourless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide as a source of carbon and return the oxygen to the atmosphere.
When people throw their garbage on the ground
