The biology in which we study about the life of marine and what they eat and how they eat..ig thats how i will explain idk
Answer:
The return of blood to the heart is assisted by the action of the skeletal- muscle pump. As muscles move, they squeeze the veins running through them. Veins contain a series of one-way valves, and they are squeezed, blood is pushed through the valves, which then close to prevent backflow.
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Hello,
Here is your answer:
The proper answer to this question is "vacuoles are used to clean the cell for example a child cleaning his or her room they would put his or her toys into a closest and that was a vacuole does it cleans up things in a cell and keeps them stored into there like a closest".
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Because he is assigned to bring Percy to camp, and if he doesn't he will not get his searchers license. P.S. I love this series!!!
