B .The membrane is what separates, and is the system boundary.<span />
One way is that it add water to the atmosphere. Another way is that the trees and leafs provides the oxygen
Answer:
<u>Louis Pasteur</u>
Explanation:
Although louis was a great scientist who made contributions to the cell theory postulating that cells come from preexisting cells, he was a renowned and father of microbiology. He proved that diseases are caused by microorganisms, developed the first vaccine and provided logical ground knowledge on fermentation and brewing.
The correct answer is <span>C. A tick attaches itself to the skin of a dog.
A parasitic relationship is one where one organism thrives at the expense of the other. The other organism does not gain but loses.</span>
When the temp becomes too high,the proteins in the enzymes begin to denature and they lose their shape
