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 blood enter in the right side of the heart through two vein they are called superior vena cava also stand for SVC and the inferior vena cava also stands for SVC
The SVC collects blood from the upper half of the body and the ICC collects blood from the lower half of the body.
And also the blood leaves the SVC and IVC and enters the right atrium
I think it contains CG which is a strand of DNA
Salmon are predators to shrimp.
This makes sense because a predator is an animal that hunts another animal to survive. Since salmon feed on shrimp, they must be a predator.
Additionally, we can eliminate the other possibilities by process of elimination:
-B is incorrect as a parasite is an organism that lives inside of another organism. Since salmon do not live inside of shrimp, this doesn't make sense.
-C is incorrect because a host is an organism that a parasite lives inside of. Since shrimp do not live inside of salmon, this also can be removed.
-D is incorrect because prey is an animal that is eaten by another animal. Since shrimp to not eat salmon, this can also be eliminated.
Therefore, A is our answer.
Hope this helps! :)
