Food Chains and Food Webs

What is the significance of the sun in a food chain?

• The sun is the primary source of energy for most food chains, as it provides the energy needed for photosynthesis.

• The sun is a secondary source of energy that supports herbivores in the food chain.

• The sun has no significant role in the food chain as energy is derived from soil nutrients.

• The sun only affects the food chain in aquatic ecosystems, not terrestrial ones.

What is a food chain?

• A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.

• A food chain is a diagram that represents the physical structure of an ecosystem.

• A food chain is a list of all the organisms in a habitat.

• A food chain is a cycle that shows how organisms interact with each other.

What is an omnivore?

• An organism that only eats plants.

• An organism that only eats animals.

• An organism that eats both plants and animals, such as humans and bears.

• An organism that does not eat at all.

What is a producer in a food chain?

• An organism that can make its own food, typically through photosynthesis, such as plants.

• An organism that consumes other organisms for energy.

• An organism that decomposes dead matter.

• An organism that relies on external sources for food.

What is a food web?

• A simple chain of organisms that eat one another.

• A complex network of interconnected food chains in an ecosystem, showing how different organisms are related.

• A diagram that shows the energy flow in a single species.

• A list of all the plants and animals in a specific area.

What is a primary consumer?

• An organism that eats producers, such as herbivores like rabbits and grasshoppers.

• An organism that decomposes dead matter, like fungi and bacteria.

• An organism that produces its own food through photosynthesis, like plants.

• An organism that eats primary consumers, such as carnivores like lions and eagles.

What role do decomposers play in an ecosystem?

• Decomposers break down dead organic matter, returning nutrients to the soil and making them available for producers.

• Decomposers produce energy through photosynthesis for the ecosystem.

• Decomposers compete with producers for sunlight and nutrients.

• Decomposers create new organic matter from inorganic substances.

What is an energy pyramid?

• A type of renewable energy source

• A graphical representation showing the flow of energy at different trophic levels in an ecosystem.

• A method for measuring energy consumption in buildings

• A structure used to store energy in batteries

What is a trophic level?

• A position in a food chain or food web, defined by how an organism obtains its energy.

• A measure of the energy efficiency of an ecosystem.

• The total biomass of all organisms in a given area.

• The rate at which producers convert solar energy into chemical energy.

What is the difference between a herbivore and a carnivore?

• Herbivores eat plants, while carnivores eat other animals.

• Herbivores are larger than carnivores.

• Carnivores eat plants, while herbivores eat meat.

• Herbivores and carnivores both eat plants.