Prepare for the Ontario Grade 9 Science Exam with confidence. Engage with interactive quizzes and challenging questions designed to enhance your knowledge. Get ready to excel in your science class!

Practice this question and more.


What is a food web?

  1. Series of steps in an ecosystem in which organisms transfer energy by eating and being eaten

  2. A system of interlocking and interdependent food chains.

  3. A diagram that shows the energy flow between organisms

  4. Scientific study of interactions among organisms and between organisms and their environment

The correct answer is: A system of interlocking and interdependent food chains.

A food web consists of multiple interconnected food chains that show the flow of energy among organisms in an ecosystem. While option A correctly describes the steps of energy transfer, it does not include connections between different food chains. Option C is a partial definition of a food web, but does not fully encompass the system. Lastly, option D refers to a different concept, the study of interactions in an ecosystem, and is not an accurate definition of a food web. Therefore, option B is the most complete and accurate description of a food web.