Nutrition and Energy Flow Part 1

The video tutorial covers the flow of energy in ecosystems, starting with the sun as the primary energy source. It explains the roles of producers (autotrophs) and consumers (heterotrophs), detailing different types of consumers such as scavengers, herbivores, carnivores, and omnivores. The tutorial also discusses decomposers and the concept of food chains, emphasizing the 10% energy transfer rule between trophic levels.

What is the ultimate source of energy for all living organisms?

• The Earth

• The Moon

• The Ocean

• The Sun

What is another name for producers?

• Heterotrophs

• Autotrophs

• Omnivores

• Carnivores

Which of the following is a consumer?

• Plants

• Water

• Sunlight

• Animals

What type of heterotroph relies on the efforts of others to find food?

• Carnivores

• Omnivores

• Herbivores

• Scavengers

Which of the following only eats plants?

• Carnivores

• Herbivores

• Omnivores

• Decomposers

What do decomposers do?

• Consume plants

• Photosynthesize

• Produce energy

• Break down dead organisms

Which of the following is an example of a decomposer?

• Humans

• Cows

• Lions

• Fungi

What is a food chain?

• A series of producers

• A pathway of energy and matter through organisms

• A type of heterotroph

• A type of autotroph

How much energy is typically transferred from one link in a food chain to the next?

• 100%

• 25%

• 50%

• 10%

What happens to energy as you move up a food chain?

• It decreases

• It doubles

• It increases

• It stays the same