Energy and Ecosystems

Nick was studying mountain lions. How could she classify them?

• omnivore, prey, consumer
• herbivore, predator, producer
• carnivore, predator, consumer
• carnivore, prey, consumer

Brooklin got a pet rabbit. She knows rabbits are herbivores. Which might she feed her rabbit?

• lettuce
• bacteria
• meat scraps
• dead insects

Which of these is the final link in every food chain?

• producer
• first-level consumers
• second-level consumers
• decomposers

Which statement is the BEST description of the diagram?

• It is an energy pyramid
• It is a forest food chain
• It is a forest food web
• It is a chart of third-level consumers

Which is the initial source of energy in most ecosystems?

• producers
• nutrients in the soil
• sunlight
• oxygen

Animals rely on plants for food and oxygen. What do plants rely on animals for?

• food 
• sunshine 
• water
• carbon dioxide

What would happen if all the mice died from disease in this food chain:
pine seed>>mouse>>snake>>hawk

• The snakes would eat pine seeds
• The producers would stop making food
• The population of snakes would increase
• The population of snakes would decrease

A shark is preparing to eat a fish swimming by. What is the BEST way to describe these two animals?

• predator and prey
• producer and consumer
• herbivore and omnivore
• scavenger and producer

Aidan notices that a tree in his backyard has a fungi growing on one side. What is the role of fungi and what are these organisms doing?

• Fungi are producers. They are making their own food
• Fungi are scavengers. They are eating the dead parts of the tree
• Fungi are producers. they are providing the tree with food.
• Fungi are decomposers. They are decomposing a part of the tree.

Scavengers 

• are organisms that break down wastes and the remains of dead organisms.
• eat dead plants and animals.
• break down dead matter.
• are herbivores.