Answer:
D)Wild boars have a high reproductive rate and no natural predators.
Explanation:
One way is by comparative anatomy. Comparing the similar bone structure of animals gives more proof of this theory. Also, the location of some animals compared to other animals of similar species is very convenient, and supports the theory of natural selection.
The HCG hormone is the answer possibly
Diffusion is the movement of particles across a membrane or the collision of molecules resulting in them to spread apart. Diffusion in cells helps exchange materials.
