Red blood cells need iron. they store iron and typically contain more iron than the fluid around them does. which action would show the blood cells doing active transport? a. pushing iron out
b. bringing iron in
c. swelling
d. shrinking

Which of the following is an example of the pull factor known as economic migration? a. better educational opportunities pulling people towards a new country b. mexican laborers entering the us to work in agricultural jobs c. joining family members that are already in a new country d. crop failures driving people away from their country i am unsure on this question, i was thinking b? but i could be wrong.

What role and side did italy fight on during world war 1? why did they change sides? write this in your own words.

The television had many impacts after it's invention. which of the following describes impacts of television? -brought people together -allowed people to see others-people saw america as the land of plenty- all the above