Roles in Marine Food Chains

The video tutorial explains the concept of food chains, focusing on identifying producers, consumers, and decomposers. It uses examples from terrestrial and marine ecosystems to illustrate energy flow. The session includes an interactive segment with the teacher's son, Theo, to engage viewers in understanding the roles of different organisms in a food chain.

In a food chain, what is the primary role of a producer?

• To consume other organisms

• To produce its own energy

• To decompose organic material

• To be at the top of the food chain

Which of the following is a characteristic of an apex predator?

• It is always a herbivore

• It is at the top of the food chain

• It produces its own energy

• It decomposes dead organisms

In a marine food chain, what role does algae play?

• Producer

• Decomposer

• Consumer

• Apex predator

What is the main function of arrows in a food chain diagram?

• To indicate the size of organisms

• To represent the speed of energy transfer

• To highlight the most important organism

• To show the direction of energy flow

In the interactive session, which organism was identified as a producer?

• Seagull

• Flower

• Insect

• Big fish

Which organism in the session with Theo eats the insect?

• Flower

• Big fish

• Small fish

• Seagull

What is the role of mushrooms in a food chain?

• Apex predator

• Producer

• Primary consumer

• Decomposer

Which organism is likely to be a secondary consumer in a food chain?

• Mushroom

• Plant

• Eagle

• Grasshopper

What is a unique feature of eagles mentioned in the video?

• They can read fine print from a mile high

• They can produce their own energy

• They are primary consumers

• They decompose organic material

In the context of food chains, what does a decomposer do?

• Is always at the top of the food chain

• Produces its own energy

• Breaks down dead organisms

• Consumes producers