Need

put these actions in order:

amino acids enter the bloodstream and are circulated throughout the body.

amino acids are absorbed by the capillaries in the jejunum.

in mechanical digestion, the teeth grind food and break it in to smaller parts.

churning and the enzyme pepsin break down protein in the stomach.

trypsin and chymotrypsin act on the proteins to break them down in the duodenum.

the pancreas releases the enzymes trypsin and chymotrypsin.

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.

essentially, one bacterial cell splits into two daugurer cells. bacterial offspring don't need or get care from their parents because they are in a sense their own parents. that said, some bacteria can and do depend on other bacteria especially in harsh environments such as bacterial microfilms in hot water tanks.