Unit 5 - 7th OL Review Ecology, Photosynthesis, Energy transform

The more diverse an ecosystem is......

• the more sustainable it is

• the more threatened its populations are

• the more similar the species will be

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What do the arrows represent in a food chain?

• size of the organisms

• the importance of the organism

• the flow of energy through organisms

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What is the primary source of energy for MOST living organisms? Which of these student statements is most accurate?

• Humans are top level consumers

• Heat because it keeps them warm

• Wind because it distributes seeds throughout the world

• The sun, because it powers almost all food chains

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During photosynthesis, energy is stored in the chemical bonds of

• oxygen

• water

• glucose

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Which of these is a producer?

• grass

• caterpillar

• grasshopper

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Which of these is a consumer?

• grass

• sunflower

• snake

Which of these is a primary consumer?

• grass

• rabbit

• eagle

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You see a food web at the park consisting of algae, snails ducks, frogs and snakes. What is at the bottom of the energy pyramid?

• algae

• hawk

• duck

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You see a food web at the park consisting of algae, snails ducks, frogs and snakes. What is at the TOP of the energy pyramid?

• algae

• snakes

• frogs

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Analyze the food web picture. Which is at the trophic level - Producer?

• Mouse

• Carrot

• Rabbit

• Owl

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