<span>I believe it is C.
Waste is removed through a designated opening.</span>
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
It's A, because it's always important to drink water. If you think about it, all the other answers seem invalid.
Day is simply when a part of the world is getting direct sunlight and night is when the sun is not facing that part of the world and relies on the reflection of the sun on to the moon to get sunlight.
