There is no actual evolutionary link between whales and fish. Whales are mammals and looking at the structure of a whales flipper it looks a lot like a hand. Fish however have no bone structure in their fins.
Second Answer:
They're an example of convergent evolution - two structures with common features which have evolved like that due to a similar/the same purpose despite having unrelated origins. Flippers have hidden fingers.
Learning that the flipper of a whale is really just like your upper arm.
A cross between a whale and a dolphinthe offspring of a whale and dolphin
some differences between
The organization helped a whale that was stuck between two rocks on the coast.
Whale oil contains a lot more blubber than shark oil
They're an example of convergent evolution - two structures with common features which have evolved like that due to a similar/the same purpose despite having unrelated origins. Flippers have hidden fingers.
The relationship between a barnacle and a whale is commensalim.
For mobility within its environment
no they are not
the barnacle live only on the whale.The type of symbiotic relationship between barnacles and whale is commensalism as they neither benefit nor harm the whale on which they live.
False - it was a dolphin
No relationship at all. Both can be aquatic but the blue whale is purely aquatic. Blue whale dies outside water.
The whale's hand has evolved into a "paddle", the flipper, used to aid them in steering when they swim.
The barnacle gets free food and a free ride and the whale is not harmed by the barnacle but does not benefit ether from the relationship. therefore the relationship between the Grey Whale and the barnacle is a perfect example of commensalism.
Whale skin and dolphin flipper
morphological divergence
they are 3m long