Analogous and Homologous

Why do analogous structures not indicate a close evolutionary relationship?

• Because they arise from different genetic backgrounds

• Because they are a result of artificial selection

• Because they are vestigial and not functional

• Because they are always structurally different

What best defines homologous structures?

• Structures in different species that are similar in function but not in origin or anatomical structure

• Structures in different species that have a common ancestor and are similar in anatomical structure

• Structures that are a result of convergent evolution

• Structures that are present in only one species and have no relevance to other species

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

What is this an example of?

• Homologous structure

• Analogous structure

• Vestigial organs

• Functional adaption

Tags

NGSS.MS-LS4-2

Structures with the same parts have different functions; suggests that organisms share a common ancestry

• vestigial structures

• homologous structures

• adaptive radiation

• fossil

Tags

NGSS.MS-LS4-2

A structure that serves the same purpose, but is not made in the same way is called

• a vestigial structure

• a homologous structure

• an analogous Structure

• a pheryngial structure

Tags

NGSS.MS-LS4-2

Which kind of a structure is it? A bird's wing and a human forearm

• Homologous

• Analogous

• Vestigial

• Pharygeal Pouch

Tags

NGSS.MS-LS4-2

Which kind of a structure is it? A bat's wing and a butterfly's wing?

• Homologous

• Analogous

• Vestigial

• Pharyngeal

Tags

NGSS.MS-LS4-2

What kind of a structure is it? A fish's gills and our lungs

• Homologous

• Analogous

• Vestigial

• Heterozygous

Tags

NGSS.MS-LS4-2

The image shows an example of..

• vestigial structure

• analogous structure

• homologous structure

Tags

NGSS.MS-LS4-2

How would you describe this evolution?

• Homologous structure

• Analogous structure

• Structural adaption

• Functional adaption

Tags

NGSS.MS-LS4-2