What is a food chain?
Why do animals eat other animals?
What are apex predators?
Does all the energy in the food chain originally come from plants?
How is an ecosystem balanced?
Why can’t humans and animals survive without plants?
What is an invasive species?
Why is photosynthesis important?
What is a predator and why do they exist?
Can you tell me about the snakehead fish and its impact as an invasive species?
Here are some questions about this topic.
Click the question to read the answer!
Ask another question about this topic!
See a Full List of Topics
© 1999–2014 BrainPOP and related companies. All rights reserved.
BrainPOP is a registered trademark of FWD Media Inc. d/b/a BrainPOP.
For the full list of trademarks referenced on this page, please see
. Your use of the site indicates your agreement to
be bound by our