Using the "Checkpoints Section" of your eBook answer the following question:

Question

How are the bones in the fin structure of the Tiktaalik evidence of a transition from fish to amphibian? Select all that apply.

Group of answer choices

It has fins like a fish.

The limb bones do not look as developed as they do in the amphibian.

It is older than fish fossils.

It has limb bones like an amphibian.

Answer 1

The correct choices that indicate how the bones in the fin structure of the Tiktaalik provide evidence of a transition from fish to amphibian are:

• The limb bones do not look as developed as they do in the amphibian.
• It has limb bones like an amphibian.

These points illustrate that Tiktaalik exhibits characteristics of both fish and early amphibians, making it a key example of evolutionary transition.