a close, long-term relationship between two or more species
an organism that consumes another.
an organism that is eaten by another.
a relationship where both organisms benefit from each other.
a relationship where one organism benefits and the other is not helped or hurt.
a symbiotic relationship where one organism benefits and the other is harmed.
an organism that feeds off of another living creature, usually without killing it
the organism that is harmed in a parasitic relationship
when two or more organisms fight for the same limited resource (food or space.)
A bird builds its nest in a tree where it is safe from predators. The tree is unaffected by the birds.
A tapeworm lives inside the digestive tract of a dog. The dog begins to lose weight over time because the tapeworm is taking away its nutrients.
Stinging ants live in a tree with thorns for protection. In turn, the ants protect the tree from being eaten by other animals.
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.