review 2

Structures that are similar to function. 

• Homologous 
• Analogous 
• Vestigial 
• DNA

Structures are similar in appearance but not in structure

• Vestigial 
• Homologous 
• Analogous Structures 
• Embryonic 

Studying the similarities in organisms development 

• DNA
• Embryonic 
• Vestigial 
• Homologous 

The survival of the fittest 

• Natural selction
• Evolution 
• Mimic 
• Camouflage 

The blending of an organism in an enviornment

• Natural selection 
• Evolution 
• Mimicry 
• Camouflage 

The changes of species over time

• Embryonic 
• Natural selection 
• Mimicry 
• Evolution 

Which layer is the youngest

• 1
• 2
• 3
• 4

Which layer is the oldest

• B
• A
• E
• C

Similar structures with different purposes found in different species are known as _____

• vestigial structures

• DNA

• homologous structures

• the fossil record

The picture shows a/an ___________

• homologous structure

• vestigial structure