Biotic relationships Flashcards
(11 cards)
Biotic relationships involve interactions between:
a) organisms and their non-living surroundings
b) living organisms of different species
c) organisms of the same species
b). Interactions between living organisms of different species
Symbiosis is…
the ‘living together’ of different organisms for a long time
Define mutalism
the symbiotic relationship where two organisms both benefit
Why does a parasite only derive nutrients from the host organism but not kill it?
because it needs the host alive to provide it a food source
If two animals require the same food they would be an example of…
competition
Three resources that organisms may compete for are…
food, water and nesting sites
TRUE OR FALSE: symbiotic relationships may be parasite-host, commensalism and mutalism
True
TRUE OR FALSE: A clown fish living in the protection of an anemone is an example of commensalism.
most likely false. However, scientists have reason to believe that there is a benefit also for the anemone
Define the term ‘biotic’
a living organism
What is a eukaryotic organism?
An organism whose cell contains all functioning organelles - these cells are the basis of most multicellular and unicellular things (including humans, plants and animals)
What is a prokaryotic organism?
An organism whose cells lack a nucleus and other organelles (such as certain bacteria)
