The first one is 100% and the second one is 50%
Answer:
Explanation:
The heart needs an abundant supply of blood to offer oxygen exchange for carbon dioxide and nutrition as well as take away waste products like carbon dioxide.
Answer:
Get to know the four main types of pollution present in the environment, and then look at a variety of real-world examples as you try to guess what type of pollution is represented by each situation. All of the real-world situations can be viewed every day in different parts of the world.
Explanation:
Answer:
The movement of a single caribou into a herd is an example of
Immigration.