Evidence of Evolution

Which of the following is an example of a vestigial structure?

• the wings of a red-tailed hawk
• the hind limbs of a house cat
• the fins of sharks
• the wings of an ostrich

What is suggested by the similarity of early embryos of different species of vertebrates?

• no evolutionary relationships between the groups
• recent common ancestry
• similar environments in the past
• evolution from a distant common ancestor

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as

• vestigial structures
• analogous structures
• homologous structures
• fossil structures

Tags

NGSS.MS-LS4-2

Two organisms that are closely related would have

• very similar DNA sequence
• exactly the same DNA sequences
• no proteins in common
• completely different DNA sequence

Tags

NGSS.HS-LS3-1

protein sequences in one organism that resemble those of another suggest a 

• coincidence
• lack of evolutionary relationship
• great number of mutations
• shared ancestry

How would you describe this evolution?

• Homologous structure
• Analogous structure
• Structural adaption
• Functional adaption

Structures that have different mature forms but develop from the same embryonic tissue are called 

• analagous
• adaptations
• homologous
• fossils

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Transitional fossil forms are important evidence of evolution because they show

• how organisms change over time
• how animals behaved in their environments
• how the embryos of organisms develop
• molecular homologies

Tags

NGSS.MS-LS4-1

Whales are aquatic mammals that contain a pelvis bone.  Even though it does not aid in its movement, the function must have been used by a common ancestor of the whale.  Thus, the pelvis is referred to as a(n)

• vestigial structure
• analogous structure
• homologous structure

Any change in the entire population over time is known as

• variation
• evolution
• stabilizing selection
• Founder effect