Because gases or liquids can't be minerals, and they don't have crystalline<span><span> structures.Hope this helps!!</span> </span>
phospholipids, glycolipids and sterols
Answer:
Exercise is important for the body to function properly.
Explanation:
Exercise helps a person to maintain the oxygen amounts in the body. Exercise, as such, enhances and regulates almost every system of the body including the nervous, respiratory, circulatory and hormonal systems.
The sympathetic division of the autonomic nervous system controls the physical activities in a person's body by detecting the low levels of oxygen and increasing amounts of carbon dioxide in the body.
An example i can think of is...
the amount of salt present in human cells cytoplasm suggests we evolved from species in the sea
