One important feature that links extinct organisms such as Pakicetus and Indohyu

Question

One important feature that links extinct organisms such as Pakicetus and Indohyus to cetaceans a: Select one: a- the lack of hindlegs b. the shape of a bone in the middle ear c- 'he presence of forelimb flippers d. peg-like teeth The fluke of a whale and the fluke of a shark: Select one: all are correct b and c correct are the result of natural selection arose through convergent evolution are homologous traits The placement of whale within the artiodactyls is supported select one DNA evidence all of the above a and b are correct the fact that some artiodactyls spend a significant amount of time in the water morphology of limb bones in extinct whales

Explanation / Answer

Question 6:

Pakicetus has been reclassified as primitive form of cetacean that have presence of inner ear/auditory bulla formed from ectotympanic bone, while as Indohyus have also presence of same type of inner ear.

Therefore, the correct answer is b: The shape of a bone in the middle ear

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