When do populations either adapt or go extinct?

Anytime the environment significantly changes

How do volcanoes and asteroids cause mass extinctions?

They put dust and ash into the atmosphere, blocking the sunlight.

They cause more than 50% of species to burn to death.

They cause giant cracks in the ground which the species fall through.

They trigger a series of earthquakes and tsunamis which destroy the earth.

What happens to the surviving populations after a mass extinction event?

They adapt to the new environment.

They continue to exist with no structural changes.

They become a whole new species.

When does variation within a population occur?

When they have different phenotypes.

When they have identical phenotypes.

When they have identical genotypes.

Why is variation useful to a population?

If the environment changes, then some of the members of the population will survive.

If the environment stays the same, then all the members of a population will die.

If the environment changes, then all the members of a population will survive.

If the environment changes, then all of the members of a population will die.

What determines which phenotype is the best?

The phenotype of an organism does not really impact its ability to survive.

Green tree frogs and gray tree frogs exist in a swamp. Green tree frogs blend in with the plants and gray tree frogs blend in with the mud and logs. The swamp experiences a drought and the green plants die. How will the population change?

Green tree frogs will increase.

Both green and gray tree frogs will increase.

The population will not change.

How does selective breeding usually impact the genetic diversity of a population?

It Doesn't Usually Affect Diversity

The more similar two species are,

the more closely related they are.

the less closely related they are.

the greater chance their DNA sequence is different.

What are homologous structures?

Structures with the same anatomy and different functions.

Structures with the same anatomy and the same function.

Structures with different anatomy and the same function.

Structures with different anatomy and different functions.

Bats wings and dolphins fins are similar in structure but differ in function. What does this imply?

They both use their wings and fins for the same function.

The earliest stages of developing life forms.

How can embryos prove common ancestry?

The more similar they are, the more closely related they are.

The less similar they are, the more closely related they are.

The more similar they are, the less closely related they are.

The similar embryos are completely random.

How can DNA prove relatedness?

The less similar the DNA sequence, the less related they are.

The less similar the DNA sequence, the more related they are.

The more similar the DNA sequence, the less related they are.

Comparing DNA sequences cannot show relatedness.

What is the difference between a prokaryote and a eukaryote?

Only eukaryotes have a nucleus.

Only prokaryotes have a nucleus.

Only prokaryotes are single-celled.

Only eukaryotes are single-celled.

Life Science Review

Authored by Sarah Southall

Science

8th Grade

51 Questions

NGSS covered

Used 49+ times

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MULTIPLE CHOICE QUESTION

20 sec • 5 pts

What is the history of life documented by fossils?

Fossil Record

Geological Time Scale

Index Fossil

Plate Tectonic Theory

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS1-4

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

The oldest fossils are found on the layer, while the youngest fossils are found on the layer.

bottom, bottom

bottom, top

top, bottom

top, top

Tags

NGSS.MS-ESS1-4

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

Which of the following CAN'T the fossil record prove about a species?

Its evolution

Its existence

Its diversity

Its extinction

Its color

Tags

NGSS.MS-LS4-1

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

How do you determine how diverse a time period was?

Count the number of different fossils in different layers.

Count the number of different fossils in the same layer.

Count the number of identical fossils in different layers.

Count the number of identical fossils in identical layers.

Tags

NGSS.MS-LS4-1

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

Which layer would be the most diverse?

A layer with 5 identical fossils.

A layer with 8 different fossils.

A layer with 10 identical fossils.

A layer with 2 different fossils.

Tags

NGSS.MS-LS4-1

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

Comparing how the anatomy of the fossil has changed over time BEST shows how the species has

existed.

adapted.

evolved.

died.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

When a species no longer exists in the upper layers, what can scientists conclude?

That it is hiding.

That it evolved into a new species.

That it went extinct.

That it never really existed.

Tags

NGSS.MS-LS4-1

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Life Science Review

What is the history of life documented by fossils?

The oldest fossils are found on the layer, while the youngest fossils are found on the layer.

Which of the following CAN'T the fossil record prove about a species?

How do you determine how diverse a time period was?

Which layer would be the most diverse?

Comparing how the anatomy of the fossil has changed over time BEST shows how the species has

When a species no longer exists in the upper layers, what can scientists conclude?

If the fossil layer contains fossils with shells and fins, then the environment was probably __. If the fossil layer contains fossils with legs and wings, then the environment was probably _.

When do populations either adapt or go extinct?

What is it called when more than 50% of populations living in an area die?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

Life Science Review

What is the history of life documented by fossils?

The oldest fossils are found on the ______ layer, while the youngest fossils are found on the ______ layer.

Which of the following CAN'T the fossil record prove about a species?

How do you determine how diverse a time period was?

Which layer would be the most diverse?

Comparing how the anatomy of the fossil has changed over time BEST shows how the species has

When a species no longer exists in the upper layers, what can scientists conclude?

If the fossil layer contains fossils with shells and fins, then the environment was probably ______. If the fossil layer contains fossils with legs and wings, then the environment was probably _____.

When do populations either adapt or go extinct?

What is it called when more than 50% of populations living in an area die?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

The oldest fossils are found on the layer, while the youngest fossils are found on the layer.

If the fossil layer contains fossils with shells and fins, then the environment was probably __. If the fossil layer contains fossils with legs and wings, then the environment was probably _.