History of Organisms

Which of the following have a similar structures but have a different function in each organism?

• A dolphin fin and a shark fin

• Human fingernails and monkey fingernails

• Front leg of a cat and the wing of a bat

• The wing of a bumble bee and the wing of a bird

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NGSS.MS-LS4-2

Which of these answers best describes the relationship between a human’s forearm and a bat’s wing?

• similar physical structures with similar functions

• different physical structures with similar functions

• similar physical structures with different functions

• different physical structures with different functions

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NGSS.MS-LS4-2

Structures with the same parts have different functions; suggests that organisms share a common ancestry

• vestigial structures
• homologous structures
• adaptive radiation
• fossil

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NGSS.MS-LS4-2

If modern organisms have a lot of homologous structures, what inference might paleontologists make about those organisms?

• They are reptiles
• One organism evolved from the other.
• The organisms have a common ancestor

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NGSS.MS-LS4-2

NGSS.MS-LS4-3

Which is not evidence for evolution?

• many animals have homologous structures due to common ancestry
• Many animals have vestigial structures from an ancestor
• We can observe changes in life forms by observing the fossil record
• All of these are evidence for evolution

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

The cave fish and minnow are related to each other but the cave fish is blind and only has the remnants of an eye. What type of structure is this?

• vestigial

• analogous

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NGSS.MS-LS4-2

In the the third embryonic stage (bottom row), mammal embryos _____

• have more characteristics in common with each other than with reptiles or birds.
• are still hard to tell from reptiles and birds.
• have the same features as fish, reptiles, and birds.
• do not have tails.

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NGSS.MS-LS4-2

NGSS.MS-LS4-3

In stage 2 (middle row) fish embryos _________

• are very different bird and mammal embryos.
• are still very similar to bird and mammal embryos.
• show arm and leg buds.
• are the only embryos with tails.

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NGSS.MS-LS4-2

NGSS.MS-LS4-3

In stage one (top row) of these embryos, most of the embryos________

• look very similar.
• have very different features.
• show different stages of development.
• have only a tail if they are non-human.

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NGSS.MS-LS4-2

NGSS.MS-LS4-3

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