Question

Hypothesis (Pls answer with IF and THEN)

How does fossil evidence determine the relationships of whale ancestors and their descendants?

Answer 1

Answer: If the fossil evidence determine the relationships of whale ancestors and their descendants, then they can see what are the remain of the fossils are the trace or remains of an organism that lived long ago.

Answer 2

Answer;

Similarities in the bone structure, the genetic composition, chemistry of the teeth etc

Explanation;

• Fossils are the trace or remains of an organism that lived long ago. Fossils provides a lot of evidence concerning the ancestors of whales.
• Fossil evidence shows that a land mammal the lived between 50 million and 70 million years ago. It is thought that whales evolved from these ocean-dwelling mammals.
• Whales Descended From Tiny Deer-like Ancestors. Scientists found that whales are mammals whose ancestors walked on land.
• The structures of the bones and chemistry of the teeth of a close relatives of whales such as Indohyus,indicates that they spent most of their time in water.