Community Ecology

What factor would cause animals of the same species to begin competing with one another?

• increase in precipitation         
• the presence of decomposers
• the introduction of a new food source
• limited supply of resources

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Animals of the same species would most likely compete over a limited amount of -

• minerals
• Oxygen
• sunlight
• mating partners

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NGSS.MS-LS2-1

The collection of all of the biotic and abiotic factors in an area describes -

• community
• population
• ecosystem
• organism

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What is a carnivore?

• an animal that gets energy by eating other animals
• An animal that gets energy by eating only plants
• an animal that gets energy by eating both plants and animals
• an animal that makes its own energy through photosynthesis

The blue line on the graph shows the rabbit population, and the red line shows the wolf population. Which statement about the graph is true?

• When the wolf population begins to increase, the rabbit population begins to decrease.

• When the rabbit population is at its lowest, the wolf population is also at its lowest.

• When the rabbit population is at its highest, the wolf population is also at its highest.

• When the wolf population begins to increase, the rabbit population also begins to increase.

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NGSS.MS-LS2-1

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Kudzu has overgrown many parts of southern Missouri and native ground plants have disappeared from the area. This is an example of:

• Parasitism between kudzu and the native plants
• A predator prey relationship between ground plants and kudzu
• Competition occurring between the native and invasive species
• Commesalism occurring between the kudzo and native plants

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What is an invasive species?

• An organism that is new to an environment that has positive effects on the environment.

• An organism that is native to an environment that has negative effects on the environment.

• An organism that is new to an environment that has negative effects on the environment.

• An organism that is native to an environment that has positive effects on the environment.

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Why do the populations of invasive species grow so quickly?

• Invasive Species are native to an area.

• Invasive species are prey to many animals.

• Invasive species have no natural predators.

• Invasive species keep the ecosystems in equilibrium.

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Click on the map to help answer this question: What can we predict about the population of Feral Swine for the year 2016?

• There will be less feral swine in 2016 than there were in 1982.

• There will be more feral swine in 2016 than there were in 2010

• There were fewer feral swine in 2004 than 1982.

• There will be no change in feral swine population.

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Which of the following is a key characteristic of most invasive species?

• Ability to breathe in the air & in the water
• Large, sharp teeth
• Produce many offspring
• Is a top predator

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