** answer asap and i dont need to know why just give me the correct

being warm-blooded and having efficient hearts and lungs thrive during the cenozoic era.

a.
mammals

b.
mammals and reptiles

c.
reptiles

d.
mammals, reptiles, and amphibians

Impressions of tropical swamp plants were observed on rocks in polar regions. the impressions were dark black imprints, which means the fossils are examples of ( 1 ) the fossils tell us that polar regions ( 2 ) ( 1 ) a. carbonization b. mineralization c. trace fossils ( 2 ) a. had tropical plants that can grow in ice b. might have had a diffierent climate in the past c. will have abundent vegitation

Which domain endings indicate websites that are most likely to be reliable sources? check all that apply. sites ending in .net

What is unusual about the iraq mountains ,in spite of their old age?