Chapter 04: The Organization of Life Review

What is an ecosystem?

• communities of organisms 
• abiotic factors within a community
• communities of organisms and their abiotic environment
• populations of organisms

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In order for an ecosystem to survive what does it need?

• energy
• mineral nutrients
• water and oxygen
• all of the choices

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Where does most of the energy from an ecosystem come from?

• plants
• protists
• the sun
• animals

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The following is an example of a biotic factor in the environment

• a tree stump
• water
• air
• dirt/soil

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The following is an example of an abiotic factor in the environment

• feces
• trees
• rocks
• moss

What must be true for an organism to be considered a unique species?

• They can mate
• They can produce viable offspring
• They live in unique environments
• They live in the same environment

What are populations?

• Organisms that produce viable offspring
• A single species living in a specific area
• Various species living in a specific area
• The location in which organisms live

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What are communities?

• Organisms that produce viable offspring
• A single species living in a specific area
• Various species living in a specific area
• The location in which organisms live

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Who observed that organisms in a population differ slightly from each other in form, function and behavior?

• Mendel
• Watson
• Darwin
• Crick

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What is the process by which individuals that have favorable variations survive and reproduce more successfully than less well adapted individuals?

• DNA Replication
• Natural Selection
• Evolution
• Adaptation

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