7th Biodiversity Review

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

Which example refres to an abiotic factor?

• Fish swimming in an ocean
• Oxygen dissolving in the water
• Trees growing
• Animals surviving in an ecosystem