morphological divergence
No
356
The bones of the distal limbs are called phalanges (phalanx is the singular).
The whales bones got dissolved in the sea..
The similarity in bone structure between the wing of a bat and the flipper of a whale suggests that bats and whales share a common evolutionary ancestor. This phenomenon is known as homology, where different species exhibit similar anatomical features due to descent from a shared ancestor, despite having evolved in different environments and for different functions. It highlights the concept of convergent evolution, where unrelated species develop similar traits as adaptations to their environments.
They both contain skeletal bones.
That the birds and seals probably have the same ancestors.
Both the bird's wing and the seal's flipper are adapted for swimming, however they have different bone structures. The bird's wing contains long, lightweight bones with hollow spaces, while the seal's flipper has shorter, denser bones. The bird's wing has feathers for flight, while the seal's flipper is covered in skin to streamline movement in water.
Whales.
yes
No, they have a backbone just like you do.
A homologous structure is a structure found in two very different animals that has a similar form in both animals. For example, the bones of a human hand are homologous to the bones in a bat's wing or a whale's flipper. Structures that appear very similar suggest that two animal may be related, as in humans, bats, and whales, which are all mammals.