Ch. 3 L. 1 Community Ecology

Multiple Choice

A community is composed of

• living organisms and their nonliving environment.

• one species of organism living in a specific environment on Earth.

• the factors that constitute an organism's niche.

• potentially interacting populations of different kinds of organisms.

Multiple Choice

What is an abiotic factor or biotic factor that restricts the numbers, reproduction, or distribution of organisms​?

• limiting factor

• range of tolerance

• resistance

• limiting reagents

Multiple Choice

Water, Sunlight, Oxygen and Soil are all parts of an organisms ______________ environment.

• biotic

• abiotic

• living

Multiple Choice

A biotic factor is something that is ________________.

• Helpful

• Living

• Non-living

• Temporary

Multiple Choice

True or False: A community is made up of populations of different species that live in the same place and interact.

• True

• False

Multiple Select

What is an example of a limiting factor?

• human disturbance

• food competition

• competition for living space

• climate

Multiple Choice

all the organisms in an area, the community, and the abiotic factors that influence that community.

• organism

• cell

• ecosystem

• community

Multiple Choice

True or False: A organism is a single individual of a species that are physically similar and can reproduce.

• True

• False

Multiple Choice

a group of organisms of the same species that live in the same area at the same time

• organism

• population

• community

• atom

Multiple Choice

A nonliving part of an ecosystem is a(n) ___________ factor.

• abiotic

• biotic

Fill in the Blanks

Multiple Choice

The ability of any organism to survive when subjected to abiotic or biotic factors is called ______________?

• tolerance

• limiting factor

• resistance

• rebellion

Multiple Choice

What range of tolerance factors could be shown for butterflies with this graph?

• temperature
• sunlight
• cloudiness
• water

Multiple Choice

On a Range of Tolerance graph, what is the zone called where only a few organisms are?

• Zone of Intolerance
• Optimum Zone
• Zone of Physiological Stress
• Population Zone

Multiple Choice

Which is a Abiotic Limiting factor

• Space
• Predation (animals hunting)
• Plants
• Animals

Multiple Choice

Which letter represents the zone of intolerance for the factor in question?

• A

• B

• C

• D

Multiple Choice

Which is a Abiotic Limiting factor

• Trees
• Grass
• Temperature
• Pack of wolves

Multiple Choice

Which zone is considered the zone of physiological stress?

• Zone A
• Zone B
• Zone C
• Zone A & B

Multiple Choice

When there is a lack of resources such as food, water, sunlight, shelter, and space this is often called __________.

• limiting factors
• wet
• messy
• found in rocks

Multiple Choice

What does the letter C represent in the graph?

• Zone of intolerance

• zone of physiological stress

• optimum range

• upper limit

Multiple Choice

The general name for change in an ecosystem that happens when one community replaces another as a result of changing abiotic and biotic factors​.

• ecological succession

• primary succession

• secondary succession

• tertiary succession

Multiple Choice

__________________, such as lichens or mosses, help create soil by secreting acids that help to break down rock during primary succession.

• pioneer species

• daniel boone species

• davy crockett secies

• frontier species

Multiple Choice

The establishment of a community in an area of exposed rock that does not have any topsoil **Usually happens very slowly ​

• ecological succession

• primary succession

• secondary succession

• tertiary succession

Multiple Choice

Weeds and fungus begin to grow on the decaying organic pioneer species, as the new weeds and fungus dies another layer of soil is formed.​

• True

• False

Multiple Choice

After multiple layers of soil have formed ____________ brought in by animals, water, and wind begin to grow grass, shrubs and trees.

• seeds

• box gardens

• magic

• fully grown plants

Multiple Choice

Lichens are most likely to grow in the following type of area:

• an old growth deciduous forest
• after a volcano erupts
• a grassy area cleared by a wild fire
• an open farm field

Multiple Choice

The following natural events will cause primary succession to occur:

• floods and hurricanes
• wildfires and controlled burns
• tsunamis and tornadoes
• glacier movement and volcanoes

Multiple Choice

How do lichens contribute to primary succession?

• Lichens decompose organic matter from animals and plants
• Lichens begin to break down rock to form soil
• Lichens are nitrogen fixing bacteria
• Lichens convert carbohydrates into fossil fuels.

Multiple Choice

__________ succession is more likely to take thousands of years before trees are seen.

• Old field
• Ecological
• Primary
• Secondary

Multiple Choice

What is formed during primary succession that doesn't need to be formed during secondary succession?

• pioneer species
• soil
• climax community
• lichens

Multiple Choice

So, how does an ecosystem start if there is no soil?

• Moss and lichen break down rock and lava and produce soil.

• Moss and lichen are air borne and they move by the wind to start in a secondary succession environment.

• Moss and lichen are simple living organism that can start growing almost anywhere.

• All answers

Multiple Choice

The orderly and predictable change that takes place after a community of organisms has been removed (through fire, flood, human disturbance, etc.) but the soil has remained intact.​

• ecological succession

• primary succession

• secondary succession

• tertiary succession

Multiple Choice

If farmers use a controlled burn to prevent forest fires, what would most likely be the first plants to return?

• trees

• shrubs

• mosses

• grasses

Multiple Choice

succession that occurs in an area where soil is already present

• ecological succession 
• primary succession 
• secondary succession
• pioneer speciles

Multiple Choice

reaches a climax community quicker because soil is already present

• primary succession 
• secondary succession
• both types of succession

Multiple Choice

The first organisms that appear in an ecological community

• ecological succession 
• primary succession 
• secondary succession
• pioneer speciles

Multiple Choice

The picture shows what type of succession?

• primary
• secondary
• tertiary
• quadanary

Multiple Choice

The stable, mature community that results when there is little change in the composition of species is called a_________________________.

• Hyatt Community

• Climax Community

• Elite Community

• Everest Community

Multiple Choice

The picture shows what type of succession?

• primary
• secondary
• tertiary
• quadanary

Multiple Choice

ends in a climax community

• primary succession 
• secondary succession
• both types of succession

Multiple Choice

Natural disasters such as flooding and tornadoes are linked to ________________.

• primary
• secondary
• old field
• ecosystem

Multiple Choice

What is the order of succession shown in this figure?

• A, B, C, D
• B, A, D, C
• C, D, A, B
• D, A, B, C

Multiple Choice

Which catastrophic event will most likely have the effect of returning an ecosystem to primary succession?

• A tornado
• A volcanic eruption
• A flood
• A drought

Multiple Choice

Which experiences the least change over time?

• Pioneer Species

• Primary Succession

• Aquatic Succession

• Climax Community