Ecology Food Chains & Food Web Unit Assessment

The direction of the flow of energy in a food web is represented by ___.

• Light bulbs
• Dotted Lines
• Arrows
• Bubbles

What does every food chain start with?

• producers
• sun
• consumer
• decomposers

Energy increases as you move up the food pyramid (from bottom to top).

• True 
• False

What percentage of energy is passed on to each tropic level?

• 10%
• 50%
• 90%
• 100%

An organism that lives by breaking apart dead organic matter into simpler parts is...

• scavenger
• consumer
• decomposer
• carnivore

Overlapping food chains in an ecosystem make up a ....

• food web

• food chain

• population

• community

Through what process do producers make their own food?

• Parthenogenesis

• Photosynthesis

• Meiosis

• Mitosis

How are primary consumers different from secondary consumers?

• Primary consumers eat only plants; secondary consumers eat other consumers.

• Primary consumers eat other consumers; secondary consumers eat only plants.

• Primary consumers eat plants and other consumers; secondary consumers eat plants and decompose matter.

• Primary consumers eat plants and decompose matter; secondary consumers eat plants and other consumers.

A diagram that shows the transfer of energy in one line is a...

• food web

• food chain

• food line

• food court

What is the name for all populations of species within an area?

• Community

• Ecosystem

• Biosphere

• Biome