PLEASE HELP ME I am so confused. I put a picture of what the question is asking for!

What is an animal that lives by preying on other animals

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins