Evolutionary History Unit Review

A descendant species is:

• a older population from which two or more newer species descended.

• a related organism from a previous generation

• everything that surrounds an organism

• a more recent species that evolved from an ancestor population.

Tags

NGSS.MS-LS4-2

ClownfIsh, Dolphins, and Sharks have similarities and differences in their body structures. What does the information about these structures tell you about the ancestors of these species?

• All three species share an ancestor population, but Sharks and Dolphins share a more recent ancestor population. This is why they share the live birth structure.

• We cannot make observations of ancestor populations from the past. It is impossible to explain ancestors with only the information about the body structures of different species.

• None share an ancestor population because different species cannot share an ancestor population. It is a coincidence that these species have some of the same body structures.

• Dolphins and Sharks share an ancestor population, but they must not share an ancestor with the Clown FIsh because Dolphins and Sharks give live birth, but Clown FIsh lay eggs.

Tags

NGSS.MS-LS4-2

Which of the following situations does NOT explain why one population of descendants look so different from another population of descendants?

• Descendant species adapted to their different environments

• Both species experienced a barrier in their environment

• Both species stayed in the same environment

Tags

NGSS.MS-LS4-2

How can you tell if two species are more closely related to each other?

• The species are both descendants.

• The species are further to the right on the evolutionary tree.

• The species share a common ancestor.

• The species share a structure that is not shared with the third species.

Tags

NGSS.MS-LS4-2

Which group of descendant species is most likely to have body structures that are the most different from the ancestor population?

• Descendant species 1 and 2

• Descendant species A, B, C, and D

• The ancestor population

• It's impossible to say.

Tags

NGSS.MS-LS4-2

Which descendant species is most likely to have body structures that are the most different from Descendant Species B?

• Descendant Species 1

• Descendant Species C

• Descendant Species A

• Missing information

Tags

NGSS.MS-LS4-2

What should be displayed on the branches of an evolutionary tree?

• ancestors

• descendants

• common ancestor populations

Tags

NGSS.MS-LS4-2

A population of trout was stable for a long time. Then, their body structures changed to make them smaller. Why did this happen?

• Trout were meant to become smaller over evolutionary time.

• It is impossible to say without more information.

• Their environment must have changed.

• The crickets wanted to be louder.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Which best describes the division of one species into two:

• stability

• evolutionary time

• speciation

• evolution

Tags

NGSS.HS-LS4-5

What is the separation that causes an ancestor population to evolve into descendant species?

• evolution

• a barrier

• speciation

• stability

Tags

NGSS.MS-LS4-2