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.
The smooth endoplasmic reticulum functions in many metabolic processes. It synthesizes lipids, phospholipids as in plasma membranes, and steroids.
The major organ of the circulatory system that causes blood to flow through the body by its pumping action is the heart.
Sonar uses sound waves in order to detect and locate objects in the water. The speed and detectable range of sound waves are impacted by the medium they are travelling through. Ocean water, the medium that sonar travels through, includes characteristics such as temperature, density, and salinity. These elements affect the nature of the medium, and thus affect the sound waves used for sonar detection.
Answer:
1)hydrogen and oxygen
2)carbon,hydrogen,oxygen and nitrogen
3)carbon,oxygen and hydrogen
4)oil
Explanation:
