Common Ancestry

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

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

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

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

• developmental homology
• molecular homology
• anatomical homology

Tags

NGSS.MS-LS4-3

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

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

What conclusions can be made based on this table shown?

• the American black bear and the giant panda are most closely related
• the giant panda and the red panda are most closely related
• the red panda and the racoon are the most closely related

Tags

NGSS.MS-LS4-2

Why do scientists think the fossil record is incomplete?

• fossils decompose over time

• the formation of fossils is rare

• only organisms with hard parts become fossils

• there are no fossils before the Phonerozoic eon.

What do the peaks of the graph show?

• extinction events

• meteorite impacts

• changes in Earth's temperature

• the evolution of new species

Which is the source of variations in a population of organisms?

• changes in environment

• changes in genes

• the interaction of genes with an evnironment

• the interaction of individuals with an environment