Answer:
All
Explanation:
You would need carbon dioxide to be able to sustain life forms such as plants, warm enough temperatures to allow the development of animals, (because they cannot be frozen), they would, of course, need oxygen to allow anyone to breathe, and finally liquid water to sustain healthy life, because we must hydrate that is necessary for survival.
So what's the question here?<span />
Answer:
a. to defend against bacteria
Explanation:The skin helps protect the body and various body cells from infection. A break in the continuity of a skin can result into harmful germs,bacteria infection penetrating into the body system. Hence the skin is a protective covering from germs,infection.
<span>B, enzymes will denature at that temperature. Sucrase has an optimal temperature of about 37 degrees celsius so 1000 would definitely be too high for them to work.</span>
Answer: Elastic fibres helps to keep blood flowing onwards away from the heart in an artery
