Evolution - Common Ancestry

Charles Darwin realized that

• the birds on the Galapagos Islands were identical.

• all life is related and descended from a common ancestor

• all life is not related and did not descended from a common ancestor.

• the oldest layer in the fossil record is located on the top.

Tags

NGSS.MS-LS4-2

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

• Fly
• Bat
• Tree
• Bacterium

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2

Using the Data Table 1, which organism is least related to rabbits?

• Fly
• Bat
• Tree
• Bacterium

Tags

NGSS.MS-LS4-2

Two of the organisms seemed to be more closely related to each other than to the other vertebrates. The type of evidence shown is using the field of — 

• comparing anatomy/body structures 
• DNA sequences 
• biochemistry
• fossil record

Tags

NGSS.MS-LS4-2

Using the cladogram to the right, which organism(s) do not have jaws?

• Lancelet
• Leopard
• Turtle
• Tuna

Tags

NGSS.MS-LS4-2

 The embryos of fish, chicken, pigs have gill slits and tails.  The presence of these features suggests that:-

•   Gill slits and tails are required for embryonic development
• Pigs and chickens are closely related
• These animals have a common ancestor
•     All these animals can swim

Tags

NGSS.MS-LS4-2

 Developmental homologies look at similarities between:

• Embryos
• DNA
• Structures
• Locations

Tags

NGSS.MS-LS4-3

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

• biogeography
• fossil record
• anatomical homology

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

Derived traits are

• highly selected traits

• primitive features

• newly evolved traits

• acquired heritable traits from parents

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Individuals that are well adapted to their environment will survive and produce

• better traits
• stronger genes
• more offspring
• fewer mutations

Tags

NGSS.MS-LS4-4