Interdependence

What is an effect of deforestation?

• The number of organisms will reduce due to loss of habitat.

• The number of organisms will increase due to loss of habitat.

• There will be a rapid increase of small animals that live near the ground.

• There will be a rapid increase of birds and insects.

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Predation is the relationship between predator and prey. For example, a bird (predator) eats an ant lion (prey). Select the statement that is true.

• An increase in the number of birds might have a positive affect, and the number of ant lions will increase.

• A decrease in the number of birds might have a positive affect, and the number of ant lions will decrease.

• An increase in the number of birds might have a negative affect, and the number of ant lions will decrease.

• An increase in the number of birds will have no affect on the ant lions because birds do not eat ant lions.

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What would cause a decrease to an organism's population?

• A decrease in predators

• Competition for food

• An increase in food

• infectious disease that affects their predators.

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The source of all energy is

• formed by decomposers

• plants

• consumers

• the sun

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Which statement correctly describes the flow of energy in a food web?

• All organisms gain their energy from decomposers

• Producers gain their energy from consumers

• Energy from producers flows into multiple levels of consumers

• All organisms receive an even amount of energy

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Organisms that make their own food are known as autotrophs. Autotrophs are also known as

• consumers

• heterotrophs

• producers

• decomposers

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What is the job of a decomposer?

• They breakdown dead organisms and organic waste.

• They use the sun to make their own food.

• They are responsible for releasing oxygen into the air.

• Provide consumers with all the energy they need.

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Which animals would be the first affected by a loss of green plants? Pick all that apply.

• Goat

• Mouse

• Kite

• Rabbit

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A loss of vegetation in a particular habitat would likely lead to

• a decrease in the population of consumers at all levels

• the immediate adaptation of primary consumers to become carnivores

• a confined decrease of only tertiary consumers

• the extinction of all primary consumers throughout the world

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Lack of sunlight would likely lead to

• limited plant growth

• a decrease in carbon dioxide

• an increase in precipitation

• an overabundance of nutrients

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