Free Printable 7th Biodiversity Review

Worksheets

7th Biodiversity Review

Total questions: 16

Worksheet time: 10mins

Name

Class

Date

During the early settlement of the United States, pioneers cut down large tracts of forests on the east coast to use for home construction, for firewood, and to create cleared spaces to plant crops.What was the most likely effect of this kind of action?

decreased plant and animal diversity

decreased human populations

decreased carbon dioxide production

increased organism biodiversity.

Which biome is more likely to survive a change in the environment?

High (rich) biodiversity

Low (poor) biodiversity

When there is higher biodiversity

more organisms are likely to die because they can't adapt to environmental changes.

there is less diversity.

there is more diversity and higher sustainability of life.

there is more diversity and lower sustainability of life

How do biodiversity and sustainability work together?

The lower the biodiversity the greater the sustainability.

The higher the biodiversity, the less sustainable the ecosystem

The higher the biodiversity, the greater the sustainability.

Biodiversity has nothing to do with sustainability.

High biodiversity is

having a lot of the same organism.

having a few of the same organism.

having a lot of variety of different organisms.

only having one of each organism.

The higher the biodiversity, the more sustainable an ecosystem is.

True

False

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.

Which biome is more likely to survive a change in the environment?

High (rich) biodiversity

Low (poor) biodiversity

Which example refers to a biotic factor?

A venus fly trap preying on a fly

A rock sitting in the sun

Sunlight warming the ground

Dirt that has a high density

10.

Which example refres to an abiotic factor?

Fish swimming in an ocean

Oxygen dissolving in the water

Trees growing

Animals surviving in an ecosystem

11.

Describes the non-living things in an ecosystem

Biotic

Abiotic

Biodiversity

Ecosystem

12.

Which of these food webs has GREATER biodiversity?

Prairie Food Web

Tundra Food Web

They are the same

13.

Which of these food webs is in a LESS sustainable ecosystem?

Oak Forest Food Web

Grassland Food Web

14.

As humans cut down and burn trees in the Amazon rainforest, are we increasing or decreasing the biodiversity and sustainability of the ecosystem?

Increasing

Decreasing

Staying the same

15.

Two farmers planted crops. They both planted crop 1 and crop 2, but farmer 2 added 14 additional crops. At first, farmer 1 had more crops but then a virus killed all of crop 2. Which farmer's field is more sustainable and why?

Farmer 1's field is more sustainable because all of crop 1 survived.

Farmer 1's field is more sustainable because more of his land is crop 1.

Farmer 2's field is more sustainable because he had more diverse crops so less of his plants died.

Farmer 2's field is more sustainable because it has smaller areas.

16.

In this food web example you can see that rain forests have many producers consumer and predators. How would you describe the rain forest biome?

It has high biodiversity

It has low biodiversity.

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7th Biodiversity Review

Total questions: 16

Worksheet time: 10mins

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