decreased ability to survive changing conditions
Hope this helps
Answer:
C)Poaching and habitat loss
Answer:never gonna give you up, never gonna let you down or desert you
Explanation:ur fat lol haha xd
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.