Invasive Species

Invasive species alter the ecosystem by ______ in number quickly. This leads to ______ food for the native species.

• increasing, less

• increasing, more

• decreasing, less

• decreasing, more

TRUE or FALSE? Invasive species can be introduced to an ecosystem accidentally/

• True

• False

TRUE or FALSE? Invasive species can be introduced to an ecosystem intentionally (on purpose).

• True

• False

Invasive plants compete with native plants for --- [choose 3]

• sunlight

• water

• oxygen

• space

What is an invasive species?

• A native (naturally found) species which are added to an area

• An organism that is new to an environment and has a negative effect on that environment.

• A keystone species in an environment

• none of the above

What is biodiversity?

• Different types of life in an ecosystem.

• Different types of animals in an ecosystem.

• Different types of plants in an ecosystem.

• Different abiotic factors in an ecosystem.

Which of the following is an example of an invasive species?

• Trout

• Kudzu

• Mosquito

• Daisy

The field mice population has grown so fast that they eat an average of $4 billion of wheat every year. Their fast growth is caused by...

(Choose 2!)

• The mice like to reproduce.

• A lack of native species to eat the field mice.

• Abundant food supply.

Why do populations of invasive species grow so quickly?

• They are prey to many animals.

• They are native to the area.

• They help keep the ecosystems in balance.

• They have no predators.

The Burmese Python is considered invasive to the Florida everglades. How do they affect the native ecosystem?

• They eat native species including alligators

• They don't affect the native ecosystem

• They swim in the water and splash water onto the land

• They stay in their nests and only eat rats