chapter 6 - communties and ecosystem dynamics

Question 1

tolerance

Answer 1

ability of an organism lives including the biotic an a biotic factors that affect it

Question 2

habitat

Answer 2

area where an organism lives including the biotic an abiotic factors that affect it

Question 3

niche

Answer 3

full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions

Question 4

resource

Answer 4

any necessity of life such as water nutrients, light, food, or space

Question 5

competitive exclusion principle

Answer 5

principle that states that no two species can occupy that same niche in the same habitat at the same time

Question 6

predation

Answer 6

Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey.

Question 7

herbivory

Answer 7

the state or condition of feeding on plants.

Question 8

keystone species

Answer 8

single species that is not usually abundant in a communty yet exerts strong control on the structure of a community

Question 9

symbiosis

Answer 9

relationship in which two species live close together

Question 10

mutualism

Answer 10

symbiotic relationship in which both species benefit from the relationship

Question 11

commensalism

Answer 11

symbiotic relationship in which one organsim benefits and the other is neither helped nor harmed

Question 12

paratism

Answer 12

a symbiotic relationship in which one organism lives on or inside another organism and harms it

Question 13

primary succession

Answer 13

succession that occurs in an area in which no trace of a previous community is present

Question 14

secondary succession

Answer 14

type of succession that occurs in an area that was only partially destroyed by disturbances