Food Webs and Food Chains

What is an herbivore?

• An organism that only eats plants for energy.

• An organism that eats both plants and animals.

• An organism that primarily eats meat.

• An organism that can survive without food.

What is the difference between autotrophs and heterotrophs?

• Autotrophs consume other organisms for energy, while heterotrophs make their own food.

• Autotrophs and heterotrophs are the same; both make their own food.

• Autotrophs make their own food, while heterotrophs consume other organisms for energy.

• Autotrophs are plants, and heterotrophs are animals only.

What is a trophic level?

• A type of ecosystem

• Each step in a food chain or food web, representing the flow of energy and nutrients.

• A measure of biodiversity

• A classification of species based on their habitat

What is a consumer?

• Organism that eats other organisms for food & energy.

• Organism that produces its own food through photosynthesis.

• Organism that decomposes dead matter for nutrients.

• Organism that relies solely on inorganic substances for energy.

What is primary productivity?

• The rate at which producers create organic material through photosynthesis.

• The total amount of energy consumed by consumers in an ecosystem.

• The process by which plants absorb water from the soil.

• The rate at which energy is lost in a food chain.

What is a food web?

• A simple chain of food sources in an ecosystem.

• A complex network of feeding relationships among various organisms in an ecosystem.

• A diagram showing the energy flow in a single species.

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

What is a food chain?

• A circular pattern of energy flow in an ecosystem.

• A linear sequence of organisms through which nutrients and energy pass as one organism eats another.

• A network of food webs that shows the interconnections between species.

• A method of food production that involves multiple species.

What is the significance of the energy pyramid?

• It illustrates the energy loss at each trophic level, showing that energy decreases as it moves up the pyramid.

• It represents the total biomass available at each trophic level.

• It shows the number of organisms at each trophic level.

• It indicates the amount of water available in an ecosystem.

Which of the following is defined as a consumer that must get its food from a different source than itself?

• Autotroph

• Heterotroph

• Phototroph

• Chemotroph

What is a producer?

• Organism that makes its own energy.

• Organism that consumes other organisms for energy.

• Organism that decomposes dead matter.

• Organism that relies on sunlight for energy only.