Question

How do the given structures provide evidence in support of evolution?

Answer 1

These all are homologous structures. We can explain their evaluation by use and misuse theory. As birds need wings to fly their phalanges must be long, where as humans are adapted for walking they dont required hands for movement and their phalanges become small. So this can explain their evaluation

Answer 2

These structures are providing information about the evolutionary relationships of eachother.