Question

If whales evolved from land-dwelling mammals, one would expect the fossil record to include intermediate forms, creatures more whale-like than land-dwelling mammals yet still possessing hind limbs and a pelvis lacking in modern whales. Such intermediates are termed __________transitional forms

vestigial features
hybrids
homologous structures

Answer 1

transitional forms

Step-by-step explanation:

the form of organism that exhibit the shape which is intermediate between the their ancestors and the descendants (just like a father between grandfather and grandson) is known to be the transitional form of respective organism.

The transitional form organisms or fossils have some traits and similarities which are common to both ancestors and the descendants.