They observe it, run tests on many different things, and do expirments
Answer:
It could mean that your kindneys arent filtering your blood properly
Answer:
Eggs are among the best sources of protein in the diet. In fact, the biological value (a measure of protein quality) is often evaluated by comparing it to eggs, which are given the perfect score of 100 ( 16 ).
Explanation:
Answer:Between A and B is one of those i think
Explanation:
Basically, there is a root. This root makes cells. Those cells die and multiply making your nail longer.
