Grade 6 Science Fusion Unit 6 Energy & Ecosystems Review

A ________________ is always the last link in a food chain.

• 1st-level consumer

• producer

• 3rd-level consumer

• decomposer

What would happen if an ecosystem did not have decomposers?

• There would be waste and dead organisms everywhere

• nothing would happen

• The prey population would increase

• prey would die out

What are the 3 main groups of consumers?

• 1st-level, 2nd-level, and 3rd level predators

• 1st-level, 2nd-level, and 3rd level consumers

• decomposers, producers, and predators

• 1st-level, 2nd-level, and 3rd level producers

Why are there more organisms in the first level of an energy pyramid?

• They have no predators in the ecosystem

• The need to feed on decomposers or they will eat up the food source

• It takes many producers to support a smaller number of consumers

• Because the 3rd-level consumers are hungry

In the process of ___________________, plants make sugar and oxygen from water, carbon dioxide, and nutrients

• Photography

• Photosensitive

• Photo-editor

• Photosynthesis

A _____________ is an organism that only eats plants to get energy

• carnivore

• herbivore

• omnivore

• Tyrannosaurus Rex

A _____________ is the transfer of energy from one organism to another in an ecosystem.

• food web

• energy pyramid

• energy square

• food chain

A _________ breaks down the waste and remains of dead organisms

• photosynthesis

• carnivore

• 1-level producer

• decomposer

An ___________ shows how much energy is passed up from one organism to another in a food chain.

• energy conservation

• energy circle

• energy pyramid

• energy bar

____________ is a green molecule used in the process of photosynthesis.

• Klorafill

• Chlorophyll

• Chlorine

• Chloroplast