Food Chains and Food Webs

What is a food web?

• A simple chain of organisms that eat one another.

• A complex network of interconnected food chains that illustrates how energy and nutrients circulate among various organisms in an ecosystem.

• A diagram showing the flow of energy in a single food chain.

• A representation of the population sizes of different species in an ecosystem.

What is an omnivore?

• An organism that eats only plants.

• An organism that eats only animals.

• An organism that eats both plants and animals.

• An organism that does not eat at all.

What is a herbivore?

• A carnivore that eats meat.

• An organism that primarily eats plants.

• A scavenger that feeds on dead animals.

• A creature that consumes both plants and animals.

What are primary producers?

• Organisms that consume other organisms for energy.

• Organisms, such as plants and algae, that produce their own food through photosynthesis and form the base of the food chain.

• Organisms that decompose dead matter and recycle nutrients.

• Organisms that rely on external sources for energy and nutrients.

What is a food chain?

• A circular diagram showing the interdependence of species in an ecosystem.

• A linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem, starting from primary producers to various levels of consumers.

• A method of classifying organisms based on their physical characteristics.

• A representation of the food web that includes only herbivores and carnivores.

What are secondary consumers?

• Organisms that produce their own food

• Organisms that eat primary consumers; they can be carnivores or omnivores.

• Organisms that decompose dead matter

• Organisms that eat plants and algae.

What are primary consumers?

• Herbivores that eat primary producers (plants) to obtain energy.

• Carnivores that eat other animals for energy.

• Decomposers that break down dead organic matter.

• Plants that produce energy through photosynthesis.

What is an ecosystem?

• A community of living organisms interacting with their physical environment, including both biotic and abiotic factors.

• A group of similar species living in the same area.

• A collection of non-living things in a specific location.

• A type of biome characterized by its climate and geography.

What happens if a top predator is removed from an ecosystem?

• Overpopulation of primary consumers leading to overgrazing and depletion of primary producers.

• Increase in biodiversity as other species fill the ecological niche.

• Immediate recovery of the ecosystem due to reduced competition.

• No significant change in the ecosystem dynamics.

What is a carnivore?

• An organism that primarily eats plants.

• An organism that primarily eats other animals.

• An organism that can eat both plants and animals.

• An organism that does not eat at all.