Evolution

What is this an example of?

• vestigial structures
• embryology
• homologous structures
• fossil record

Which species’ DNA is most similar to the DNA of the toothed whale? 

• Hippopotamus 
• Baleen Whale
• Grazing Mammals
• Camels

Similar embryological development in different organisms indicating a common ancestry or evolutionary origin

• morphology

• molecular homology

• vestigial structure

• embryology

Structures that have different mature forms in different organisms but were derived from the same common ancestor and embryonic tissue

• homologous structures

• vestigial structures

• molecular homology

• analogous structures

A change in a species over time

• adaptation

• fossil

• evolution

• vestigial structure

Preserved remains or evidence of ancient organisms

• natural selection

• diversity

• morphology

• fossil

A change in a species over time is

• Adaptation

• Evolution

• Diversity

• Morphology

Scientists compare the limbs of organisms to look for evidence of common ancestry. These limbs provide evidence of common ancestry because they -

• perform the same function
• are the same size
• have the same basic structure
• are parts of the same animal

The similarities among early stages of the embryos provide evidence that -

• these organisms evolved from a common ancestor
• the organisms all retained their gills and tails
• the organisms belong to the same species

The picture shows the members of the Camelidae family. The physical features and the geographical origin of these animals provide evidence that - 

• they live in the same type of environment.
• have slowly evolved to become herbivores.
• have a common ancestor.
• exchanged DNA in the past.