2B: Biodiversity

2B: Biodiversity

Multiple Choice

Which of the following is a benefit of biodiversity in agriculture?

• Passing on specific traits to crops

• Increasing soil erosion

• Reducing crop yield

• Decreasing genetic diversity

Multiple Choice

Why is biodiversity important for medicine?

• Many medicines come from plants

• It increases air pollution

• It reduces the need for conservation

• It causes invasive species to spread

Multiple Select

Which of the following are consequences of habitat change and loss for biodiversity?

• Loss of food resources

• Loss of shelter

• Increase in native species

• Loss of other resources

Multiple Choice

Which of the following pollutants can poison both people and wildlife?

• Heavy metals

• Oxygen

• Clean water

• Sunlight

Multiple Choice

What is overharvesting?

• When humans hunt, fish, or harvest a species faster than it can replenish itself

• When humans protect endangered species

• When humans plant more trees than they cut down

• When humans stop fishing in certain areas

Multiple Select

Which of the following are effects of climate change on biodiversity?

• Extreme weather events cause stress on populations

• Changes in earth’s climate cause global effects on biodiversity

• Increase in biodiversity everywhere

• No impact on animal populations

Multiple Choice

Why is biodiversity important for the stability of ecosystems?

• It increases the stability of communities and ecosystems.

• It decreases the number of species.

• It causes environmental changes.

• It reduces genetic diversity.

Fill in the Blanks

Populations will either

or die out.

Multiple Choice

What is an adaptation?

• Something that helps an organism survive its surroundings

• A type of weather event

• A way to decrease biodiversity

• A method of overharvesting

Multiple Choice

Which of the following is a behavioral adaptation?

• Birds migrating south for the winter

• A giraffe’s long neck

• A cactus storing water

• A polar bear’s thick fur

Multiple Choice

Which of the following is an example of a structural adaptation?

• Birds migrating in winter

• Chipmunks collecting and storing food

• Ducks having webbed feet

• Opossums playing dead

Multiple Choice

How does biodiversity contribute to the stability of ecosystems?

• By increasing the number of predators

• By increasing the stability of communities and ecosystems

• By reducing the number of species

• By eliminating genetic diversity