Biodiversity Review

How does an invasive species affect an ecosystem?

• The invasive species interacts with all of the living organisms in a non-competitive way
• The invasive species travels between multiple different ecosystems or habitats to find food
• The invasisve species solely depends on birds for its food supply
• The invasisve species can disrupt biodiversity and food webs by competing with or harming species native to that ecosystem

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What is THE most major cause of extinction today?

• habitat destruction by humans
• poaching
• disease
• hunting

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Biodiversity refers to

• extinct species
• the variety of species on Earth
• nonrenewable resources
• the rate of species decline

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Most of the species on Earth are

• plants
• animals
• fungi
• insects

Some species are so important to the functioning  of an ecosystem that they are called

• keystone species
• cornerstone species
• essential species
• exotic species

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A place that stores seeds to preserve their genes for the future is called a/n...

• Botanical preserve
• Plant depository
• Seed bank
• Herbarium

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Why are frogs and other amphibians so sensitive to environmental change?

• They produce high numbers of offspring each breeding season.
• Chemicals easily pass through their skin, and they spend a lot of time in ponds & streams.
• They have a diverse diet.
• None of the above.

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Which biome is more biodiverse?

• Desert
• Sand
• Tundra
• Rainforest

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

• High (rich) biodiversity
• Low (poor) biodiversity

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Image "B" shows more biodiversity than image "A". Why?

• Because "B" shows more different species than image "A"

• Because image "B" has less different species than "A"

• "A" has a greater number of same species plants so this statement is wrong.

• Both images show the same biodiversity

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