Ecosystem Energy and Organism Roles

The video tutorial explains the owl's role in its ecosystem, focusing on energy transfer within a food web. It describes the owl as a tertiary consumer, feeding on rodents and birds, which are secondary consumers. The video also covers primary consumers like grasshoppers and snails, and producers such as plants. It highlights the energy efficiency across trophic levels, where only 10% of energy is transferred to the next level. Additionally, the role of decomposers in recycling nutrients back into the ecosystem is discussed. The video concludes with resources for further learning about food webs.

What do the arrows in the ecosystem diagram represent?

• The direction of sunlight

• The direction of wind

• The direction of water flow

• The direction of energy transfer

Which animals are part of the owl's diet?

• Insects and reptiles

• Large mammals

• Fish and amphibians

• Rodents and small birds

Why is the owl considered a tertiary consumer?

• It is the largest animal in the ecosystem

• It only eats plants

• It is at the topmost level and feeds on other carnivores

• It feeds on primary consumers

What do rodents primarily eat?

• Fish and amphibians

• Insects, worms, and snails

• Large mammals

• Reptiles and amphibians

What are primary consumers?

• Organisms that decompose dead matter

• Organisms that produce energy

• Organisms that eat secondary consumers

• Organisms that eat producers

What process do plants use to produce energy?

• Fermentation

• Decomposition

• Photosynthesis

• Respiration

How much energy is transferred from one trophic level to the next?

• 10%

• 50%

• 75%

• 25%

What is the role of decomposers in the ecosystem?

• They consume primary consumers

• They break down once living organisms and recycle materials

• They provide shelter for other organisms

• They produce energy through photosynthesis

Which organisms are considered decomposers?

• Birds and rodents

• Plants and trees

• Bacteria and fungi

• Insects and worms

How do plants absorb recycled nutrients?

• Through their roots

• Through their leaves

• Through their stems

• Through their flowers