BIS Food Webs Quiz

What is a food web?

• A process by which plants use sunlight to make sugar from carbon dioxide and water

• A sequence of living things in which each one feeds on the living thing below it

• Living things that break down dead and decaying organisms

• A model of intersecting food chains

Mia, Evelyn, and Avery are on a quest to understand the food web. They stumbled upon a question: What is the role of decomposers in a food web?

• They are the recycling heroes, returning nutrients back to the ecosystem through decomposition

• They are the kings and queens, sitting at the top of a food web and are not eaten by any other animals

Why do animals eat other animals?

• To get energy and building blocks

• To break down dead organisms

• To provide materials for growth

• To keep the prey populations from getting too high and overgrazing the ecosystem

Imagine you're in a wild adventure with Hannah, Avery, and Noah. You come across an animal that is at the top of the food web and is not eaten by any other animals. What would you call this animal?

• An apex predator

• Decomposers

What do zebras eat and what eats zebras?

• Zebras eat trees and grasses, and they are eaten by lions, hyenas, and cheetahs

• Zebras eat mice, rats, frogs, snakes, and rabbits, and they are eaten by owls

• Zebras eat earthworms, millipedes, and centipedes, and they are eaten by decomposers

• Zebras eat plants and they are not eaten by any other animals

Zoe, Luna, and Aria are having a debate about producers and consumers in nature. Can you help them settle it? How do producers and consumers get their names?

• Producers eat other organisms, while consumers make their own food

• Producers, like plants, take energy from the sun and make their own food, while consumers, like animals, eat other organisms

What is the role of worms, bacteria and fungi in a food web?

• They recycle nutrients in the ecosystem through decomposition

• They eat mice, rats, frogs, snakes, and rabbits

• They take energy from the sun and make their own food

• They are found at the top of a food web and are not eaten by any other animals

Imagine Aria, Isla, and Noah are on a mission to save the world! They need to understand how human actions can affect food webs. Can you help them understand how these actions impact food webs?

• Overhunting, which can make an ecosystem out of balance

• Reducing the population of decomposers, which can lead to nutrient recycling

What is the main source of energy in a food web?

• Decomposers

• Animals

• The sun

• Plants

What is the maximum number of steps in a typical food chain?

• 4

• 6

• 10

• 8