Why is it important to conserve the biodiversity of Earth?

to increase the stability of ecosystems during environmental changes

to decrease the amount of global predator populations

to decrease the stability of major global ocean currents

to increase the amount of nonrenewable resources located in the lithosphere

How could a global decrease in plant diversity affect the biosphere?

It could cause a decrease in animal populations in the biosphere.

It could cause an increase in the amount of oxygen gas available for plants and animals.

It could cause an increase in animal diversity in the biosphere.

It could cause a decrease in the amount of water available for plants and animals.

Which action will most likely cause a negative impact on the biodiversity of a small region?

draining a wetland for the development of a new park

planting native species in a bare field to attract wildlife

reducing the amount of pesticides and fertilizers used

having a controlled burn to remove undergrowth of a forest

Biodiversity refers to

the variety of species on Earth

1. What makes a species invasive?

Moving to a new ecosystem and taking resources from natives

Plants that take up too much space

A species is defined as endangered when it

suffers from damage to its habitat.

suffers from disease or predation.

when there are hazards to the continued life of the species.

What are the greatest problems facing plants, animals, and people?

introducing new species that can cause problems

How does habitat fragmentation reduce genetic diversity in species?

Habitat fragmentation isolates a large population into smaller groups.

Habitat fragmentation makes nonnative species introduction possible.

Habitat fragmentation opens migration routes.

Habitat fragementation encourages open gene flow.

In what part of the world are the greatest number of extinctions occurring?

in Europe and the United States

An endangered species is

a species in danger of extinction

an organism brought to a place where it has not lived before

a species that has disappeared entirely

How do people benefit from biodiversity?

aesthetic or personal enjoyment

Preserving entire ecosystems rather than individual species is a good conservation strategy because

more than one species can be saved

only endangered species will be saved

developers will have greater access to land

it will not be necessary for environmentalists to study the ecosystem

Where are many critical biodiversity hotspots located?

islands, tropical rain forests, and coastal areas

cities and developed areas of the world

What human activities have influenced recent extinction events?

introducing non-native species (competition)

Biodiversity Assessment

Quiz

•

Science

•

9th - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS2-5, MS-LS2-1, MS-LS4-4

+5

Standards-aligned

Nadja Pitchford

Used 5+ times

FREE Resource

30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

True or false: An ecosystem with high genetic diversity is healthier than an ecosystem with low genetic diversity.

True

False

Tags

NGSS.MS-LS2-5

NGSS.MS-LS4-4

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Species richness is

a measure of how all of the individual organisms in an ecosystem are balanced between the different species.

the total number of different species found in an ecosystem

Tags

NGSS.MS-LS2-5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which community has higher species evenness?

Community A

Community B

Tags

NGSS.MS-LS2-5

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which island would be the most biodiverse?

Small island far from the mainland

Small island close to the mainland

Large island close to the mainland

Large island far from the mainland

Tags

NGSS.MS-LS2-5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A solution to habitat fragmentation is

building ecosystem ladders

building more zoos

building more islands

building wildlife corridors

Tags

NGSS.MS-LS2-5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is a keystone species?

A keystone isn't a living thing, it's just a stone

Keys and stones have nothing to do with ecology

A species that lives in or around rocks

A species that helps to hold an ecosystem together

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A drought has hit this grassland biome. How will this effect the rabbit population?

The rabbits will increase in number.

The rabbit population will stay the same.

The rabbit population will decrease.

The rabbit population will become extinct immediately.

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Biodiversity Assessment

30 questions

True or false: An ecosystem with high genetic diversity is healthier than an ecosystem with low genetic diversity.

Species richness is

Which community has higher species evenness?

Which island would be the most biodiverse?

A solution to habitat fragmentation is

What is a keystone species?

A drought has hit this grassland biome. How will this effect the rabbit population?

Which organisms in the food web shown to the right are predators that compete for the same prey in this environment?

Why is it important to conserve the biodiversity of Earth?

Biodiversity can include genetic diversity within a population or variation of populations within an ecosystem. Given this information, which of the following is likely to have the MOST biodiversity?

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