Eco 7ABC Formative (food chain, web, energy pyramid)

Lions eat zebras which are herbivores. What is the original source of the lion's energy?

• Plants that get their energy from plant eaters.

• Carnivores that get energy from plants.

• Zebra that store their energy in their fat/muscle.

• Plants that get their energy from the sun.

Tags

7a

If a zebra ate 1,000 calories of grass, how many calories would you expect to be passed on to the lion that eats the zebra?

• 1

• 100

• 10,000

• 1,000,000

Tags

7a

Which type of model best shows how the energy flows through an ecosystem? (hint: it is the more complex one)

• Food Chain

• Food Web

• Energy Pyramid

• Egyptian Pyramid

Tags

7a

Which statement correctly describes the transfer of energy in a food chain in this wetland?

• Energy is transferred from hawks to shrews to grasshoppers to marsh grasses.

• Energy is transferred from marsh grasses to crickets to hawks to frogs.

• Energy is transferred from grasshoppers to crickets to frogs to hawks.

• Energy is transferred from cattails to crickets to shrews to hawks.

Tags

7a

Which organisms make up the first trophic level?

• Herbivores (plant-eating animals)
• Carnivores (meat-eating animals)
• Producers (plants, algae, and some bacteria)

• Decomposers (fungi and bacteria that break down dead matter)

Tags

7b

Which trophic level turns organic material back into inorganic material for producers to use?

• Producers
• Primary consumers
• Decomposers
• Secondary consumers

Tags

7b

Which of the following is a primary consumer in this food web?

• deer

• grasses

• hawk

• mushroom

Tags

7b

What do we call an organism that eats a primary consumer?

• autotroph

• secondary consumer

• tertiary consumer

• trophic level 2

Tags

7b

In this energy pyramid, what is the proper name for ANY ORGANISM ABOVE THE PRODUCER LEVEL?

• decomposers
• consumers
• producers
• omnivores

Tags

7c

How much energy is available to be passed on to the next trophic level in an ecosystem?

• 100%
• 10%
• 50%
• 75%

Tags

7c