They train our immune system so it's ready when our bodies are attacked, and they aid in digestion and supply us with vitamins. ... Scientists and doctors can even utilize prokaryotes to help the human body.
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.
Food preparation is the process that involves planning and preparing of meals. The food prep (preparation) list is a sheet that contains information of ingredients and the amount of each of the ingredients required when preparing a particular dish. The food prep list is part of a recipe which makes the kitchen much more organized and prevents wastage and excessive use of ingredients.
Answer: hydrogen
Explanation:
Two elements make up the overwhelming majority of the sun's matter, by mass: hydrogen (about 70 percent) and helium (about 28 percent).