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Ecology

Total questions: 11

Worksheet time: 6mins

Name
Class
Date
1.

Ecosystem: definition

a)

a population & the abiotic factors that affect them

b)

a population & the biotic factors that affect them

c)

a community & the biotic factors that affect them

d)

a community & the abiotic factors that affect them

2.

Abiotic factors: examples

a)

water, air, rocks, fish

b)

water, bacteria, rocks, soil

c)

water, air, rocks, soil

d)

water, air, small mammals, soil

3.

Population: definition

a)

a group of organisms belonging to different species that live in a particular area

b)

a group of organisms belonging to the same species that live in a particular area

c)

a group of organisms belonging to the same species that live in separated areas

d)

a group of organisms belonging to the different species that live in separate areas

4.

Population Density: definition

a)

calculated by dividing the number of individuals in a population by the unit area

b)

calculated by dividing the number of different populations by the unit area

c)

calculated by dividing the number of individuals in a community by the unit area

d)

calculated by dividing the number of individuals in an ecosystem by the unit area

5.

Limiting Factor: definition

a)

any factor that slows the speed of alpaca

b)

any factor that slows growth in an ecosystem

c)

any factor that slows community growth

d)

any factor that slows population growth

6.

Density Dependent Factor: definition

a)

population changing factors that are triggered by an increase in species size

b)

population changing factors that are triggered by no change in a population density

c)

population changing factors that are triggered by an increase in a population density

d)

population changing factors that are triggered by an increase in species camouflage ability

7.

Density Independent Factor: definition

a)

population changing factors that occur regardless of how dense the population is

b)

population changing factors that occur in very dense populations

c)

population changing factors that occur in very small populations

d)

population changing factors that occur in very large populations

8.

Carrying Capacity: definition

a)

the maximum number of individuals a Popeye's can support

b)

the average number of individuals an environment can support

c)

the minimum number of individuals an environment can support

d)

the maximum number of individuals an environment can support

9.

Primary Succession

a)

development of a population that was previously inhabited

b)

development of a population that was previously uninhabited

c)

development of a community that was previously uninhabited

d)

development of a community that was previously inhabited

10.

Secondary Succession

a)

reestablishment of a damaged population

b)

reestablishment of a damaged ecosystem

c)

reestablishment of a damaged species

d)

reestablishment of a damaged ice cream shop

11.

Energy Pyramid: bottom level

a)

Producer/Consumers (plants), 10% more energy than contained in Herbivores

b)

Producer/Heterotrophs (plants), 10% more energy than contained in Herbivores

c)

Producer/Autotrophs (plants), 10% more energy than contained in Herbivores

d)

Producer/Autotrophs (plants), 10% less energy than contained in Herbivores