Energy Flow in Ecosystems

The video tutorial explains the energy flow in ecosystems, starting with the sun as the primary energy source. It covers the roles of producers, consumers, and decomposers, detailing how energy is transferred through food chains and food webs. The video also discusses energy loss during these transfers and concludes with a call to action.

What is the primary source of energy for all ecosystems?

• The Moon

• The Sun

• The Ocean

• The Wind

Which process allows green plants to convert light energy into chemical energy?

• Digestion

• Photosynthesis

• Respiration

• Evaporation

What are organisms called that produce their own food?

• Producers

• Decomposers

• Scavengers

• Consumers

Which type of consumer eats only plants?

• Omnivores

• Carnivores

• Decomposers

• Herbivores

What is the role of decomposers in an ecosystem?

• To consume plants

• To break down dead organisms

• To store energy

• To produce food

In a food chain, what does the arrow represent?

• Nutrient cycle

• Direction of movement

• Energy flow

• Water flow

Which of the following is a correct sequence in a food chain?

• Cabbage -> Snail -> Bird -> Fox

• Snail -> Cabbage -> Fox -> Bird

• Bird -> Cabbage -> Snail -> Fox

• Fox -> Bird -> Snail -> Cabbage

How is a food web different from a food chain?

• It shows a single path of energy flow

• It combines multiple food chains

• It only includes producers

• It excludes decomposers

What happens to energy as it moves through a food chain?

• It disappears

• It decreases

• It remains constant

• It increases

Which of the following is NOT a reason for energy loss in a food chain?

• Photosynthesis

• Movement

• Respiration

• Undigested food