evolution

species

speciation

vestigial structures

homologous structures

What is the relationship between the leg of a horse and the leg of a cat?

By studying the DNA of organisms, scientists can _____________.

Did the ancestors of modern horses have fewer toes or more toes than horses today?

The study of embryology has shown scientists that _________________.

Which of the following are evidence that evolution has happened and living things have changed over time?

A gene mutation in a certain chameleon species allows the chameleon to blend in better and avoid predation.  What can be expected to happen in the next generation of this chameleon species?

In class you looked at the timeline of whale evolution, what does the fossil evidence show us about the past ancestors of modern whales?

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