Origin and Diversity of Life Evidence

A fossil is

• a dead organism

• a dead plant or animal that is now extinct

• an organisms that died on a rock

• is the preserved remains or traces of once living organisms

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NGSS.MS-LS4-1

Paleontologists dig for fossils in different layers of rock. From an evolutionary perspective, which fossils are considered to be older fossils?

• the fossils in the upper rock layers

• the fossils in the lower rock layers

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NGSS.MS-ESS1-4

Humans, birds, whales and lizards all have similar arm bones. What do evolutionists consider is the reason for this?

• The function of these bones is the same in all animals

• They live in similar environments

• They have a common ancestor

• All organisms resemble humans

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NGSS.MS-LS4-2

NGSS.MS-LS4-1

According to the evolutionary perspective, organisms that are closely related would be expected to have

• very similar DNA sequence

• exactly the same DNA sequences

• no proteins in common

• completely different DNA sequence

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NGSS.HS-LS4-2

NGSS.HS-LS3-1

The structures shown are known as _________

• homologous

• heterologous

• analogous

• vestigial

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NGSS.MS-LS4-2

Scientists looking at several animal species notice that some have very similar amino acid sequences. What do they claim that this suggests?

• These are the same animal.

• These animals have a common ancestor.

• These animals are not likely related.

• These animals are likely becoming one species.

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NGSS.MS-LS4-2

NGSS.MS-LS3-1

The process by which populations slowly change over time is called__________

• selective breeding

• adaptation

• sepeciation

• evolution

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NGSS.MS-LS4-2

NGSS.MS-LS4-4

From an evolutionary perspective, organisms that share a common ancestor have structures that are similar, but have different functions.These similar structures are known as

• vestigial structures

• analogous structures

• homologous structures

• fossil structures

Tags

NGSS.MS-LS4-2

The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct from the evolutionary perspective?

• Fossil A and C are the same age

• Fossil B is older than fossil C

• Fossils A is older than fossil B

• Fossil D is older than fossil C

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS1-4

If species A and B have very similar genes and proteins, what do evolutionists claim is most likely true?

• species A and B share a 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