Answer:American Goldfinch follows this pattern. Beginning in September, and continuing for six to eight weeks, they molt all of their feathers, ending up with a completely new and pristine set of feathers (and drab colors) as they head into the winter. In the spring, as they grow new body feathers the males especially transform into bright yellow breeding plumage, but the wing and tail feathers remain from the previous fall. As these wing feathers get older the pale buff edges fade to white and disintegrate, so that by the end of the summer the wings look essentially all black. And in September another complete molt begins.
Explanation:
Answer:
They each have vestigial structures.
Explanation:
Birds and humans have a common ancestor as they have homologous structures.
Vestigial structures are the organs that have some important functions in the past but now in present, they do not perform any function.
Both humans and birds have vestigial structures such as humans have an appendix and ear pinna and wings of flightless birds such as ostrich.
Hence, the correct answer is "They each have vestigial structures.".
Answer:
Explanation:
Several conclusions can be drawn from this observation;
1. The adaptation for fur colour in the mice from both location was similar, this could be because both environments have almost similar conditions.
2. It is also an indication that the dark fur colour may have evolved independently in both populations.
3. Two completely different mutations in two separate genes can generate the same phenotype.
Answer:
I think the answer is speed.
Please let me know if its correct or not
