No, the correct answer is Ecosystem
The answer would be C. Tears because the others have shown to be invaders
<span>enzymes are resuable as they are biologically catalyst which speeds up the rate of a reaction without being chemically changed themselves. However, if the enzyme is to be denatured under unfavourable conditions (extreme temperatures, extreme pH), the enzymes may not be reusable once denatured.</span>
The answer is B - experimental group .
The answer is D
carbon dioxide is absorbed through plants leaves converted it to glucose then animals eat glucose and exhale carbon dioxide
