Evidence of Common Ancestry

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

• Embryological Evidence

• Fossil record

• Anatomical Evidence

• Molecular Evidence

Tags

NGSS.HS-LS4-1

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.HS-LS4-1

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

• developmental homology
• molecular homology
• anatomical homology

Tags

NGSS.HS-LS4-1

Traits that are similar because they originated from a common ancestor

• vestigial structures

• homologous

  structures

• adaptations

• natural selection

• embryological evidence

Tags

NGSS.HS-LS4-1

The human hemoglobin molecule contains a chain of 146 amino acids. The chart below shows how many amino acids in other animal hemoglobin differ from the human hemoglobin. Based on this evidence alone, to what animal are humans more closely related?

• Rhesus monkey

• Mouse

• Chicken

• Frog

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2

NGSS.HS-LS3-2

What can we conclude from the similarities in the baleen whale and hummingbird skeletons?

• The whale could fly at one time.

• The hummingbird could once swim.

• Both animals evolved from a common ancestor.

• There is nothing to conclude because they are so different.

Tags

NGSS.HS-LS4-1

Comparing embryo development of different animals

• Molecular Evidence

• Embryological Evidence

• Anatomical Evidence

• Fossil Evidence

Similarities in amino acid sequence that results from common ancestry.

• Molecular Evidence

• Anatomical Evidence

• Fossil Evidence

• Embryological Evidence

Tags

NGSS.HS-LS4-1

Process where organisms better adatped to their environment tend to survive and reproduce

• Genetic Drift

• Adaptations

• Evolution

• Natural Selection

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

NGSS.HS-LS4-3

Change in an organism's characteristics that better enables it to survive in its environment.

• Homologous Structures

• Analogous Structures

• Vestigal Structures

• Adaptations

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4