Evidence of Common Ancestry

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

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

Using Data Table 1, which organism shares a most recent common ancestor with rabbits?

• Fly
• Bat
• Tree
• Bacterium

Tags

NGSS.MS-LS4-2

Using the cladogram to the left, which organism(s) do not have jaws? (choose all that apply)

• Lancelet
• Leopard
• Lamprey

• Tuna

Tags

NGSS.MS-LS4-2

Which conditions are best for possible fossil formation? (Check all that apply)

• slow burial in a sandy environment

• quick burial in a sandy environment

• An environment without oxygen

• An area with a high rate of erosion

Which animal is most closely related to birds?

• shark

• Primate

• rabbit

• crocodile

Tags

NGSS.MS-LS4-2

Which animal is most distantly related to the bird?

• shark

• rabbit

• primate

• crocodile

Tags

NGSS.MS-LS4-2

All of the following are evidence of common ancestry, EXCEPT:

• Anatomical

  similarities

• Comparative Embryology

• Fossil Record

• Analogous Structures

• Molecular similarities

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

These limbs provide evidence of common ancestry and are examples of:

• Limbs that serve the same function

• Homologous structures

• They cannot be used as evidence

• Analogous Structures

Tags

NGSS.MS-LS4-2

Which organism is the best example of an index fossil?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1