Similar DNA Common Ancestor

The similarities of the bones in the diagram provide evidence that---

• The organisms shown lived in the same natural envionrment

• The organisms shown may have developed from a common ancestor

• The organisms shown have the same genetic diseases

• All vertebrate species have identical forelimbs

Tags

NGSS.MS-LS4-2

What is common ancestry?

• When a species no longer exists

• When organisms are descended from a single ancestor

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

What can the arm bones of humans and bats show us? That they...

• .. shared an ancestor whom had that arm structure

• ... will eventually evolve into similar creatures

• ... share a gene pool

Tags

NGSS.MS-LS4-2

The forelimbs of humans, cats, whales, and bats are similar in structure due to having a common ancestor hundreds of millions of years ago. Is this considered homolgy or analogy?

• Homology

• Analogy

Tags

NGSS.MS-LS4-2

Two organisms that are closely related would have

• very similar DNA sequence

• exactly the same DNA sequences

• no proteins in common

• completely different DNA sequence

Tags

NGSS.HS-LS3-1

Evolutionary biologists say that similarities between different species are evidence of which of the following?

• Organs shrinking and losing their function

• Formation of the first cell in an organic soup

• The presence of a common ancestor in a species

• The concept that life comes only from life

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

If species A and B have very similar genes and proteins, what is probably TRUE?

• species A and B share a relatively recent common ancestor

• species A evolved independently of species B for a long period

• species A is younger than species B

• species A is older than species B

Tags

NGSS.MS-LS4-2

Based on the data, which is most likely an ancestor of Organism 5?

• Organism 1

• Organism 2

• Organism 3

• Organism 4

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

All are true statements, except...

• The organisms look nearly identical at their first stage of development.

• This image suggests that all of the animals have a common ancestor.

• The tortoise and the fish look the most similar through development.

• The rabbit and the human (man) look most alike because they are both mammals.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Which of these organisms most likely shares an evolutionary relationship to the organism pictured?

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• 
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Tags

NGSS.MS-LS4-3