What is the purpose of the outer ear?
a. to evaluate the quality of sound
b. to convert mechanical waves into electrical waves
c. to collect and focus sound waves
d. to convert sound waves into mechanical waves.

Select the correct answer from each drop-down menu 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 limhe se it can be concluded that