Exploring Food Chains and Food Webs

What is the primary focus of the lesson discussed in the video?

• Plant growth processes

• Food chains and food webs

• Climate change effects

• Animal behavior studies

Which level directly consumes producers in a food chain?

• Primary consumers

• Decomposers

• Tertiary consumers

• Secondary consumers

What does a food web demonstrate that a single food chain does not?

• Single species interaction

• Energy transfer in a linear path

• Complex ecosystem interactions

• The role of decomposers only

What are feedback loops in the context of food webs?

• Mechanisms to manage ecosystem changes

• Cycles that reduce energy transfer

• Processes that stabilize energy flow

• Systems to increase consumer populations

What activity are students asked to perform related to food webs?

• Present a project

• Construct food webs from a worksheet

• Write an essay

• Create a poster

Which organism is considered a primary consumer?

• Crayfish

• Diving beetle

• Mosquito

• Algae

How is energy transferred in a food web?

• From lower to higher trophic levels

• Within the same trophic level only

• From higher to lower trophic levels

• Randomly between organisms

What happens if a key species in a food web goes extinct?

• It has no effect on the web

• Only affects the species of the same trophic level

• It can disrupt the entire food web

• Increases biodiversity

What role do decomposers play in a food web?

• They consume primary consumers

• They transfer energy to producers

• They produce energy

• They break down dead material

What is the ultimate learning target of the lesson?

• To identify different biomes

• To describe food chains and food webs

• To calculate energy efficiency in a web

• To list all known producers