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.
All i know is 'hat, it is composed of three layers
Answer is c have a good day
It would affect the animals that feed off of the tiger shark. Also, shark meat contains toxic mercury. Fun Fact: They can smell up to 100 yards and 91 centimeters. If helpful please give brainlest answer so I can level up.
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Beyond size, the main structural differences between plant and animal cells<span> lie in a few additional structures found in </span>plant cells. These structures include: chloroplasts, the cell<span> wall, and vacuoles. For now you can use this to figure it out until you send me a picture of the model.
Hope this helps!</span>
