Question

as shown in the animation, biologists use fossil evidence to understand evolution in the development of vestigial structures. based on what you observed, correctly drag each description to the proposed fossil ancestors or modern whale in the illustration. if you find you cannot move on from the question, it may be because you have not completed it. some will have more than one label. earliest acknowledged whale ancestor that was well adapted to running and jumping on land. streamlined body with only internal remnants of hind limbs, hinting at earlier relatives observed in the fossil record. hind limbs are not quite gone but are completely disconnected from spine. fully aquatic organism with hind limbs adapted to function as paddles. hind limbs first begin to change to adapt to life in water.

Explanation:

Based on whale evolution knowledge from biology, match descriptions to appropriate fossil - ancestors or modern whale.

Answer:

No specific options given to answer. Need to drag descriptions as per animation/illustration which is not provided fully here.