Animals were used for food.!
There are two major sources of energy that power the earth's environmental systems, these are SUN AND THE EARTH'S INTERIOR HEAT.
The heat energy from the sun is the one responsible for processing all the external processes that occur in the atmosphere, hydrosphere and on the earth surface.
The energy from the earth's interior is the one that is respondsible for powering the internal processes that produce earthquakes, volcanoes eruptions and mountain formation.
The genes within these chromosomes are the cell's nuclear genome and are structured in such a way to promote cell function. The nucleus maintains the integrity of genes and controls the activities of the cell by regulating gene expression—the nucleus is, therefore, the control center of the cell.
He can maintain genetic stability if he keeps the plants properly seperated, treated, and reproduce with the same plants rather than specifically large ones or specifically small.
Adenosine triphosphate (also called ATP) is used by the cell as fuel to pump sodium out of the cell during the process of active transport. It carries energy to the areas of the body where it is needed. It is necessary for many of the cell's functions and is an important part of metabolism.
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