32 G. Competition – use or defense of a resource by one individual that reduces the availability of the resource to other individuals; ex. Organisms compete for food, space oxygen shelter, etc. (called limiting factors)These two species are indirect competition for food.
33 H. Relationships1. predator – organism that feeds upon another2. prey – organism that is eaten
34 3. parasitism – one organism benefits while the other is harmed; ex 3. parasitism – one organism benefits while the other is harmed; ex. leeches4. commensalism – one organism benefits & the other is unaffected; ex. clown fish live in anemones (remember Finding Nemo) because other fish avoid the stinging tentacles5. Mutualism – both benefit; ex. flowers and bees
35 I. Carrying Capacity – the maximum # of organisms an area can hold
36 J. Community Changes: succession – series of changes that take place in a community as it ages 1.Land: grasses shrubs trees (climax community)