Who wants a bf have pad. let be 10-13

The images show fossils of a modern bird and two extinct organisms (a tyrannosaurus rex and an archaeopteryx). based on the structure of the three organisms, it can be concluded that . the archaeopteryx and bird have wings, while dinosaurs have limbs. so, it can be concluded that .

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

Twind is considered to be an abiotic factor because it.?