Ecosystems Quiz

What is the definition of an ecosystem?

• A linear sequence of organisms in a food chain

• A system of non-living things only

• A community of living organisms interacting with each other

• A type of artificial environment

Who first coined the term 'ecosystem'?

• Albert Einstein

• Dr. Shweta Sharma

• Sir Arthur Tansley

• Charles Elton

Which of the following is not an example of a natural ecosystem?

• Desert

• Aquarium

• Forests

• Aquatic

What starts the grazing food chain?

• Herbivores

• Dead organic matter

• Green plants

• Carnivores

What is the primary energy source for the detritus food chain?

• Solar energy

• Organic decay

• Wind energy

• Water flow

What does the pyramid of energy illustrate?

• The complexity of food webs

• Total dry mass of organisms

• Energy flow at each trophic level

• The number of organisms at each trophic level

Which pyramid is always upright?

• Pyramid of energy

• Pyramid of number

• Pyramid of detritus

• Pyramid of biomass

What percentage of energy is typically transferred to the next trophic level?

• 10%

• 5%

• 1%

• 20%

What is the role of decomposers in an ecosystem?

• To produce energy through photosynthesis

• To recycle nutrients from dead organic matter

• To consume primary producers

• To disrupt food chains

What is a food web?

• A linear sequence of organisms

• A pyramid representing energy flow

• A complex network of interlinked organisms

• A type of artificial ecosystem