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Assessment
What is biodiversity?
The variety of life in a particular habitat or ecosystem.
The number of trees in a forest.
The total amount of carbon in an atmosphere.
The pollution levels in an area.
Which of the following is a benefit of biodiversity in forests?
It increases ecosystem resilience to changes.
It reduces the amount of rainfall.
It eliminates all forms of pests.
It limits the growth of plants.
What role do keystone species play in an ecosystem?
They have a disproportionately large effect on their environment relative to their abundance.
They are the most numerous species in an ecosystem.
They are always the top predators in the food chain.
They have no significant impact on their surroundings.
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