Energy Flow in Ecosystems

What is an energy pyramid?

• A diagram that shows how much energy is available at each feeding level in an ecosystem.

• A chart that illustrates the temperature variations in an ecosystem.

• A model that represents the physical structure of an ecosystem.

• A graph that depicts the population sizes of different species in an ecosystem.

What percentage of energy do herbivores receive from plants?

• 5%

• 10%

• 15%

• 20%

What is a trophic level?

• A type of ecosystem

• Each step in a food chain or food web, representing a different level of energy transfer.

• A measure of biodiversity

• The total biomass of an area

Why are energy pyramids important?

• They show the distribution of species in an ecosystem.

• They illustrate the energy loss at each trophic level, showing that less energy is available as you move up the pyramid.

• They represent the number of organisms at each trophic level.

• They indicate the amount of biomass present in an ecosystem.

What are primary consumers?

• Carnivores that eat other animals.

• Herbivores that eat producers.

• Omnivores that eat both plants and animals.

• Decomposers that break down dead matter.

Which consumer eats the largest variety of different producers?

• Grasshopper

• Rabbit

• Deer

• Cow

What are producers?

• Organisms that produce their own food, typically through photosynthesis, like plants.

• Organisms that consume other organisms for energy.

• Organisms that decompose dead matter.

• Organisms that rely on external sources for food.

What is a decomposer?

• Organisms that produce energy through photosynthesis.

• Organisms that break down dead or decaying organisms, returning nutrients to the soil.

• Organisms that consume primary producers for energy.

• Organisms that live in symbiosis with plants to enhance nutrient uptake.

What is a food chain?

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

• A diagram that shows the flow of energy in an ecosystem.

• A list of all the organisms in a specific habitat.

• A type of food web that includes only herbivores.

What is the role of sunlight in an ecosystem?

• Sunlight is the primary energy source that fuels photosynthesis in plants.

• Sunlight helps in the decomposition of organic matter.

• Sunlight provides warmth to the soil and air.

• Sunlight is essential for the growth of fungi.