Answer:
The evolution of the heart is based on the separation of oxygenated blood from deoxygenated blood for efficient oxygen transport. pisces have a dual chambered heartwhile reptiles and amphibians are having a three chambered finally aves and mammals have four chambered hearts.
Explanation:
please mark as brilliant answer
With this x and y pair they are male
Answer:
D) Mendel's law of independent assortment
Explanation:
i just did it on USATESTPREP and got it right
Well, pollution is probably the main reason, but i think all of them are reasons why animals are dying off, if there isn't any choice for all of them, then your best bet would be to do a, pollution.
