Level 12 Level 14
Level 13


6 words 0 ignored

Ready to learn       Ready to review

Ignore words

Check the boxes below to ignore/unignore words, then click save at the bottom. Ignored words will never appear in any learning session.

All None

Pyramid of Biomass
Pyramid which shows the total dry mass of organisms at each trophic level
Pyramid of number
Pyramid which shows the number of organisms at each trophic level
An relationship in which both organisms benefit
Organisms which live on a host and benefit from the host, but the host is damaged
Parasitism examples
Dog & fleas, head lice & human, tapeworm & human, mistletoe & tree
Mutualism examples
Oxpecker & buffalo, cleaner fish & large fish, nitrogen-fixing bacteria & legume, chemosynthetic bacteria & giant tubeworms