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

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NGSS.MS-LS4-2

Scientists are studying a particular protein found in blood cells. Based on this, which animals are most closely related?

Dog: ARG - LYS - HIS - TYR

Rabbit: ARG - LYS - TYR - TYR

Elk: ARG - PRO - TYR - ARG

• Dog & Rabbit

• Rabbit & Elk

• Dog & Elk

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NGSS.MS-LS4-2

Scientist who studies prehistoric life

• geologist

• biologist

• paleontologist

• cardiologist

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NGSS.MS-LS4-2

The bones of the forelimbs (wing or arm) of three animals are shown in the illustration. What is the most reasonable conclusion that can be drawn from a comparison of these structures?

• Birds and bats are closely related to each other while humans are unrelated to both

• The common ancestor of birds and bats must have had wings and flown.

• Humans live in habitats very different from the habitats of both birds and bats.

• Humans and bats share a closer evolutionary history with each other than with birds.

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NGSS.MS-LS4-2

an older population from which two or more newer species descended

• descendant species

• paleontologist

• common ancestor population

• shared structure

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NGSS.MS-LS4-2

What does this diagram show?

• All three species share a common ancestor, but the bold jumping spider and common octopus are more closely related to each other than they are to the Bombay locust.

• All three species share a common ancestor, but the bold jumping spider and Bombay locust are more closely related to each other than they are to the common octopus.

• The three species are not related and come from separate lines of evolutionary history.

• All three species share a common ancestor and are equally related to one another.

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NGSS.MS-LS4-2

A body part in one organism that is similar in function with the body part of another is called a

• homologous structure

• analagous structure

• vestigial structure

• Pharyngial pouch

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NGSS.MS-LS4-2

What kind of a structure is it? An Ostrich's wing

• Homologous

• Analogous

• Vestigial

• Pharyngeal

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NGSS.MS-LS4-2

What kind of a structure is it? An Ostrich's wing

• Homologous

• Analogous

• Vestigial

• Pharyngeal

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NGSS.MS-LS4-2

Birds have different beaks to help them survive in their habitat, which is a type of ___________ adaptation.

• behavioral

• physical

• learned

• migration

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NGSS.MS-LS4-2