Food Chain

The video tutorial explains the concept of food chains and food webs, highlighting the sequence of organisms in a habitat and their dependency on each other for food. It introduces trophic levels and the roles of producers, primary consumers, secondary consumers, and decomposers. The importance of decomposers in recycling nutrients back into the ecosystem is emphasized, along with examples of different types of consumers such as herbivores, carnivores, omnivores, and insectivores.

What does a food chain illustrate in an ecosystem?

• The water cycle in a habitat

• The migration patterns of animals

• The sequence of organisms dependent on each other for food

• The energy flow between producers and decomposers

Which of the following best describes a food web?

• A single linear sequence of organisms

• A complex network of interconnected food chains

• A diagram showing only producers and consumers

• A chart of animal migration routes

What is the role of producers in a food chain?

• They manufacture their own food

• They are secondary consumers

• They decompose dead matter

• They consume other animals

Which type of consumer feeds on both plants and animals?

• Insectivores

• Herbivores

• Carnivores

• Omnivores

Why are decomposers crucial for an ecosystem?

• They are at the top of the food chain

• They are primary consumers

• They prevent the accumulation of dead matter and waste

• They produce energy for the food chain