What is the function of the structure identified by the red arrow?

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 .

9. wind power creates pollution. water air soil noise

Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas