They evolved over time from older species.<span>
</span>
That process is called homeostasis
Explanation:
2) E) ribosome .
3) c) cytoskeleton: The cytoskeleton is a series of fibers made from proteins. It provides structure to the cell and gives it its shape it its shape.
4) a) chloroplast
Answer:
Natural air pollutants include radon, fog and mist, ozone, ash, soot, salt spray, and volcanic and combustion gases.
<em>C) Winter.</em>
<em />
<em>I used someone else's answer and it was incorrect so I did it myself</em>
<em />
<em />
<em></em>
