Ecosystem Roles and Energy Flow

The video tutorial introduces students to key ecology vocabulary, including terms like decay, compost, food chain, food web, energy pyramid, radiant energy, photosynthesis, ecosystem, producers, consumers, decomposers, scavengers, and predators. It explains the roles and interactions of these elements within ecosystems, emphasizing energy flow and nutrient cycles. The lesson provides definitions, examples, and encourages students to document their learning.

What should students include in their spiral according to the introduction?

• Only definitions

• Definitions and examples

• Pictures only

• Definitions, examples, and pictures

What is compost primarily used for?

• Feeding animals

• Improving soil in gardens

• Building houses

• Creating energy

In a food chain, where does energy usually begin?

• With the Sun

• With the decomposers

• With the consumers

• With the producers

What does an energy pyramid illustrate?

• The constant energy at each level

• The increase in organisms at each level

• The increase in energy at each level

• The decrease in available energy at each level

How is radiant energy from the Sun used by plants?

• It is used to produce oxygen

• It is converted into chemical energy

• It is stored as water

• It is used to create heat

What is the main product of photosynthesis?

• Glucose

• Carbon dioxide

• Nitrogen

• Water

Which of the following is a producer?

• A mushroom

• A plant

• A vulture

• A lion

What role do decomposers play in an ecosystem?

• They produce energy

• They break down dead organisms

• They hunt prey

• They consume producers

Which of the following is an example of a scavenger?

• A rabbit

• A vulture

• A tree

• A fish

What is the relationship between a predator and its prey?

• They both decompose matter

• They both produce energy

• The predator hunts and eats the prey

• The predator is eaten by the prey