Trophic Levels Quiz

What do food chains demonstrate?

• A sequence of organisms

• A random collection of animals

• A list of plant species

• A group of unrelated organisms

In a food chain, what do the arrows indicate?

• The direction of energy flow

• The size of the organisms

• The speed of the organisms

• The color of the organisms

Which organism is at the beginning of the food chain shown in the diagram?

• Seagull

• Starfish

• Abalone

• Seaweed

What are food webs formed from?

• Isolated food chains

• Connected food chains

• Single organisms

• Individual plants

What do food webs allow us to see?

• The diet of a single animal

• The habitat of a plant

• Multiple food chains an organism might be part of

• The lifespan of an organism

Select the correct food chain from the above Food Web.

• Autotrophic protists → Daphnia → Trout → Kingfisher

• Macrophytes → Tadpole → Diving beetle → Humans

• Detritus → Crayfish → Mallard duck → Perch

• Autotrophic protists → Mosquito larva → Rudd (fish) → Humans

Which trophic level is responsible for consuming producers?

• Tertiary Consumer

• Secondary Consumer

• Primary Consumer

• Producer

What is the first trophic level in an ecosystem?

• Consumers

• Decomposers

• Producers

• Scavengers

What process do producers use to convert carbon dioxide into oxygen?

• Respiration

• Photosynthesis

• Fermentation

• Digestion

Why are producers also called "autotrophs"?

• They consume other organisms

• They produce their own energy

• They decompose organic matter

• They rely on other organisms for food