4. Commensalism —One organism benefits, while the other is unaffected.
Commensalism is a ( + / 0 ) relationship
– Both species benefit (+/+).
Understand food webs and degrees of separation within them
See slides 2 degrees of separation
Recognize examples of the types of species interactions.
5.Explain how humans influence these interactions.
1) Introduced species 2) Habitat destruction or alteration 3) Hunting / exploitation
6.List some strategies used by prey species to avoid being eaten.
Mullerian Mimicry: 2 or more distasteful or harmful organisms resemble each other Batesian Mimicry: defenseless species (mimic) is protected from predation by its resemblance to a species that is dangerous Warning Coloration: conspicuous to convey threat Cryptic Coloration: blend in with environment Sit-and-wait predators: motionless until prey close enough to strike