saliva in mouth
pepsin,hcl,and mucus are responsible for digestion of food
Turtles can breath in and out of water. Fish only can breath in water.
Similar organisms that can reproduce by interbreeding belong to the same species.
When the circular muscles contract, the earthworm stretches, becoming longer and thinner. The earthworm uses its setae to anchor the front of its body in the soil. Now the longitudinal muscles contract and the earthworm becomes shorter and wider or it bends from one side to the other, pulling the body forward.
