The amnion is an extra-embryonic membrane that surrounds the embryo and encases it in amniotic fluid.

which animal lacks an amnion?
a) frog
b) lizard
c) pigeon

Interactions between organisms and their environment impact the organism’s overall population. the jaguar panthera onca is the largest cat in north america. it is found in areas across the southwest, including arizona, new mexico, and texas. it is a carnivore that has powerful jaws and sharp teeth and preys on fish, turtles, tapirs, and many smaller mammals. which shows the relationship between the jaguar and turtles?