Human Impacts: How Do People Disrupt Ecosystems?

The video explores the existence and biodiversity of life on Earth, highlighting the importance of biodiversity for ecosystem health. It discusses how both natural and human factors can impact ecosystems, using a pond ecosystem as an example of interdependence. The video concludes by questioning the future impact of the growing human population on Earth's ecosystems.

What is one of the key benefits of biodiversity in ecosystems?

• It reduces the number of species.

• It makes ecosystems weaker.

• It strengthens and makes ecosystems healthier.

• It limits the resources available to humans.

Which of the following is a human factor that can threaten an ecosystem?

• Exploitation of species

• Genetic evolution

• Natural disasters

• Seasonal changes

What happens when an endangered species completely dies off?

• It becomes extinct.

• It becomes a new species.

• It migrates to another ecosystem.

• It adapts to new conditions.

In the example of the fish pond, what was the unintended consequence of removing algae?

• The pond became cleaner.

• The fish population increased.

• Smaller organisms lost their food source and died.

• The water level rose.

How might the increasing human population affect Earth's ecosystems in the future?

• It will have no impact.

• It will increase the strain on resources.

• It will lead to more biodiversity.

• It will decrease resource use.