Download Interactions Among Living Things

Interactions Among
Living Things
Predation
 An
interaction
in which
one
organism
kills another
for food.
Predator
 The
organism that does the killing.
Prey
 The
organism that is killed.
Symbiosis
A
close relationship between two species
that benefits at least one of the species.
Mutualism

A relationship in which both species benefit.
 http://animalsymbiosis.weebly.com/nile-
crocodile-and-egyptian-plover-bird.html
 http://www.necsi.edu/projects/evolution/co-
evolution/mutualistic/coevolution_mutualistic.html
Commensalism

A relationship in which one species benefits and
the other species is neither helped nor harmed.
 http://thebiomedesert.weebly.com/mutualis
m-commensalism-parasitism-andpreatorprey.html
Parasitism

Involves one
organism living on or
inside another
organism and
harming it.

Parasite – the
organism that benefits

Host – the organism
it lives on or in

http://www.cdc.gov/parasites/babesiosis/gen_inf
o/faqs.html
Examples
Pictures of Symbiotic Relationships
http://www.marietta.edu/~biol/biomes/symbiosis.htm
Types of Interactions Quiz
http://www.cstephenmurray.com/onlinequizes/biology/Ecology/typesofinteractionsexamples.htm