Ecology Vocabulary Quiz

Which of the following is a correct definition of a producer in an ecosystem?

• An organism that makes its own food through photosynthesis.

• An organism that consumes other organisms for energy.

• An organism that eats only plants.

• An organism that eats both plants and animals.

• An organism that eats only meat.

What is another name for a producer?

• Autotroph

• Heterotroph

• Decomposer

• Consumer

What is another name for a consumer?

• Heterotroph

• Autotroph

• Producer

• Decomposer

What is symbiosis?

• A relationship between different organisms where both organisms benefit

• A relationship where one organism benefits and the other is harmed

• A relationship where one organism benefits and the other is unaffected

• A relationship where both organisms are harmed

Why is a food web more accurate to use than a simple food chain?

• A food web shows more depth and shows multiple connections between organisms.

• A food web is simpler to understand.

• A food web only includes herbivores.

• A food web ignores decomposers.

Where does almost all energy for living things come from?

• The Sun

• The Moon

• The Earth

• The Ocean

How much energy moves up to the next level of the energy pyramid when an organism eats another organism?

• 10%

• 20%

• 30%

• 40%

Define biotic:

• Living components of an ecosystem

• Non-living components of an ecosystem

• Chemical elements in the environment

• Physical factors affecting organisms

Define abiotic:

• Non-living chemical and physical parts of the environment

• Living organisms in an ecosystem

• Processes involving living organisms

• Interactions between living organisms

What is logistic population growth?

• A model of population growth where has a point of exponential growth but also slows and then stops.

• A model of population growth where the growth rate remains constant regardless of population size

• A model of population growth where the growth rate increases indefinitely

• A model of population growth that is not affected by environmental factors