Ontario Grade 9 Science Class Practice Exam 2026 – Your Complete Guide to Exam Success!

A habitat is the natural environment or surroundings in which a particular organism lives and obtains resources for survival. Options B, C, and D are incorrect because they do not accurately define a habitat. Option B describes an ecosystem, which is a community of living and non-living things interacting with each other. Option C describes a food chain, which is a simple model that shows how energy flows from one organism to another in an ecosystem. Option D describes ecology, which is a scientific discipline that studies the relationships between organisms and their environment. Therefore, the best answer would be A as it directly defines a habitat.