Organism Relationships Quiz

Which of the following is an example of commensalism?

• A bee pollinating a flower

• A leech sucking blood from a fish

• A barnacle attached to a whale

• A snake eating a mouse

In an Arctic food chain: Plankton → Krill → Fish → Penguin → Seal → Killer Whale, the role of the killer whale is (a)  

• Producer
• Primary Consumer
• Secondary Consumer
• Apex Predator

The original source of energy for most ecosystems is the _______.

• Water

• Sun

• Soil

• Wind

A food web is more complex than a food chain because it shows _______.

• Only producers

• Only one path of energy

• Multiple paths of energy

• Only consumers

Only 10% of energy is passed from one trophic level to the next because: (a)  

• Energy is completely used up.
• Energy is lost as heat.
• Energy is stored in the soil.
• Energy is converted to water.

What is a producer in a food chain?

• An organism that eats plants

• An organism that makes its own food

• An organism that decomposes matter

• An organism that hunts other animals

Which of the following is a biotic factor?

• Rock

• Water

• Fish

• Temperature

Match the following descriptions with the type of organism they describe in a food chain.

• Predator

• An organism that makes its own food

• Decomposer

• An organism that hunts other animals

• Primary Consumer

• An organism that decomposes matter

• Producer

• An organism that eats producers

What is a secondary consumer in a food chain?

• An organism that makes its own food

• An organism that eats primary consumers

• An organism that decomposes matter

• An organism that hunts other animals

Which of the following is an abiotic factor?

• Rocks

• Trees

• Oxygen

• Animals