Common Ancestry

Which is NOT an example of a vestigial structure?

• eyes of a blind salamander

• pelvic bones in a whale

• thorns on a rose bush

• wings on a flightless bird

Tags

NGSS.MS-LS4-2

Which do the images represent?

• analogous structures

• embryological structures

• homologous structures

• vestigial structures

Tags

NGSS.MS-LS4-2

Which is an example of a sudden change that could lead to the extinction of species?

• a mountain range isolates a species

• Earth's tectonic plates move

• a volcano erupts

• sea level changes

Tags

NGSS.MS-ESS3-2

Which is the sequence by which natural selection works?

• selection → adaptation → variation

• selection → variation → adaptation

• variation → adaptation → selection

• variation → selection → adaptation

Which explains the relationship between fossils and extinction events?

• fossils are not related to extinction events

• extinction events produce no fossils

• fossils are evidence of extinction events

• extinction events are widespread and rapid decreases in the biodiversity on Earth

Tags

NGSS.MS-LS4-1

How does evidence from the fossil record and from living species suggest that Earth's species are related? Check all that apply.

• fossils

• comparative anatomy

• embryology

• molecular research

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Which evidence of common ancestry is being studied in this visual?

• biogeography
• fossil record
• anatomical homology
• molecular homology

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which evidence of common ancestry is being studied in this visual?

• biogeography
• fossil record
• anatomical homology

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which evidence of common ancestry is being studied in this visual?

• biogeography
• fossil record
• anatomical homology

Tags

NGSS.MS-LS4-2

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

Tags

NGSS.MS-LS4-2