VOCAB TERMS

Question 1

Habitat

Answer 1

the place where an organism usually lives

Question 2

Ecological niche

Answer 2

all of the physical, chemical, and biological factors that a species needs to survive, stay healthy, and reproduce in an ecosystem

Question 3

Competition

Answer 3

ecological relationship in which two organisms attempt to obtain the same resource

Question 4

Predation

Answer 4

in which one organism, the predator, kills and feeds on the other organism, the prey

Question 5

Symbiosis

Answer 5

a relationship in which two different organisms live in close association with each other

Question 6

mutualism

Answer 6

a relationship between two species in which both species benefits

Question 7

Commensalism

Answer 7

a relationship between two organisms in which one organism benefits and the other is unaffected

Question 8

Succession

Answer 8

the replacement or one type of community by another of a single location over a period of time

Question 9

Limiting factor

Answer 9

environment factor that limits the growth and size of a population

Question 10

Density-dependent limiting factor

Answer 10

environmental resistance that affects a population that has become overly crowded

Question 11

Density-independent limiting factor

Answer 11

enviromental resistore that affects a population regardless of population density

Question 12

Pioneer Species

Answer 12

a species that colonizes an uninhabited area and that starts on the ecological cycle in which many other species become established

Question 13

Paratism

Answer 13

a relationship between two species in which one species, the parasite, benefits from the other, one species, the host

Question 14

Population density

Answer 14

measure of individuals living in a difined area

Question 15

Immigration

Answer 15

The movement of an individual or group, new community, or region

Question 16

Emigration

Answer 16

The movement of an individual or group out of a native area

Question 17

Exponential growth

Answer 17

ogarithmic growth or growth which numbers increase by a certain factor in each successive time period

Question 18

Logistic growth

Answer 18

population growth that starts with a minimum number of individuals and reaches a maximum on the carrying capacity of the region; described by an S-SHAPED CURVE

Question 19

Carrying Capacity

Answer 19

The largest population that an environment can support at any given time

Question 20

Population

Answer 20

all of the individuals of a species that live in the same area