The answer is Arteries
Arteries carry oxygen-rich blood from the heart to capillaries. On the contrary, veins carry blood without oxygen from the capillaries to the heart.
Arteries are very flexible and yet strong blood vessels so that efficient transport of oxygen-rich blood along the bloodstream through the organism is enabled.
The difference between cytoplasm and cellcytoplasm is jelly like fluid part of the protoplasm
The three main systems of government used today are unitary systems, federal systems, and confederate systems
They are both the same and different in some way. But, if you're looking for the similarities, they both "rebulid" the environment that has been damaged by nature itself or by humans. The only difference is Primary succession takes longer than secondary succession. I hope this helped! :-)
