Review for Test #2

What is this diagram called?

• Food web

• Food chain

• Food map

• Food menu

An organism that eats both plants and animals is known as a(n)

• Carnivore

• Omnivore

• Herbivore

• Decomposer

Autotrophs are organisms that produce their own food. Which do scientists classify as autotrophs?

• Chordates

• Fungi

• Plants

• Molds

What is the first source of energy for almost all food webs?

• Plants

• Sunlight

• Mineral in the soil

• Decomposers

Which organisms are at the bottom level of an energy pyramid?

• Producer

• Consumer

• Decomposer

• Scavenger

How much energy is passed on to each trophic level in an energy pyramid?

• 10%
• 90%
• 50%
• 80%

Which organisms have the most available energy in an energy pyramid?

• Producers

• Consumers

• Decomposers

• Detritivores

If additional snakes are introduced into this ecosystem, there will most likely be an immediate decrease in the _________.  

• hawk population
• rabbit population
• wildflower population
• grass population

Which would be the appropriate term for an organism that eats a producer?

• scavenger
• decomposer
• secondary consumer
• primary consumer

If there are 47,802 calories (energy) available at the producer level of this food chain, how many calories would be available at the tertiary consumer level?

• 47.802

• 478.02

• 4.7802

• 0