IR, Chapter 14

Habitat does not include all of the living components of an organism's life.

• True
• False

Competitive exclusion

• species occupy similar niches but live in different areas
• one species will be better suited to a niche; the other may become extinct
• nonliving conditions

Niche includes all of the following except

• food
• nonliving conditions
• behavior
• death

predation

• one organism hunts and feeds on another organism
• interaction in which both organisms benefit
• relationship in which one organism benefits and the other is harmed

mutualism

• one organism hunts and fees on another organism
• interaction in which both organisms benefit
• relationship in which one organism benefits and the other is harmed

parasitism

• one organism hunts and fees on another organism
• interaction in which both organisms benefit
• relationship in which one organism benefits and the other is harmed

competition

• two organisms fight for the same limited resources
• close ecological relationship between two or more organisms of different species
• relationship in which one organism benefits and the other in neither harmed nor benefits

symbiosis

• two organisms fight for the same limited resources
• close ecological relationship between two or more organisms of different species
• relationship in which one organism benefits and the other in neither harmed nor benefits

commensalism

• two organisms fight for the same limited resources
• close ecological relationship between two or more organisms of different species
• relationship in which one organism benefits and the other in neither harmed nor benefits

Clumped dispersion

• individuals live close together in groups
• individuals live at specific distances from one another
• individuals are spread out in an area ununiformly