Eco Dynamics

If the population of a certain predator increases, there is often _______ its prey

• a decrease the population of
• an increase of the population of 
• great news for its prey of
• no  impact found on

True or false: Invasive Species decrease biodiversity in the native habitat

• True
• False

True or false: Invasive species can lead to extinction of native species

• True
• False

True or false: Invasive species can carry or cause foreign diseases leading to significant population decreases

• True
• False

Invasive species thrive in their new environments due to...

• Few predators
• Reproducing quickly
• Quick adaptability
• All of the above

Cane toads in the video were introduced in a new environment as...

• a pet
• biological pest control
• accidentally transported 

1. What is extinction?

• When an organism reproduces
• The inside of a nucleus
• When a species dies off from Earth.

2. What is a Mass Extinction?

• When an organism dies off from Earth
• When multiple species or organisms die off from Earth
• A type of trait

Which of the following is not a reason a species may become extinct?

• competition
• reproducing
• habitat loss
• overhunting

The Florida panther is a large cat related to lions. Panthers eat deer, rodents, and livestock. Panthers once lived in Tennessee. Which of these most likely caused panthers to disappear from Tennessee?

• Panthers in Tennessee were unable to reproduce.
• People hunted panthers and destroyed their habitats.
• Natural predators killed and ate all the panthers in Tennessee.
• Panthers in Tennessee ran out of food.