Answer:
The answer is A, an object must reflect light.
Explanation:
You can't see anything if there isn't any light to see. Therefore something would have to reflect light in order for us to see it. Hope this helps!
It is not D. 165 ( i know this is wrong but it wont let me submit without an explanation as to why it's wrong.)
Answer:
high risk because you can pass sickness and dieses around
Answer:
The principles of specificity, progression, overload, adaptation, and reversibility
So the enzymes in your stomach are most likely there to help you disguest your food. Also they make sure everything is good in your stomach.