Answer:
riding the bike instead of the Car
Enzymes are used to speed up reactions. They’re also called catalysts and their main purpose is as a speed boost for reactions
The buffy coat is an anti coagulated part of the blood and it contains white blood cells and platelets. It makes up less than 1% of the entire sample
54750/365 = 150
A tortoise can live 150 years.
It's A, because it's always important to drink water. If you think about it, all the other answers seem invalid.
