Year 9 · Spring First Half
Biology
3 lessons from 1 unit.
Unit B9 · lessons 4 to 6 of 6
Ecosystems and interdependence
Nothing in a habitat feeds itself alone. This unit follows the energy from the plants that capture it up through everything that eats, watches what happens when one species is taken out, and ends with the problem of counting a field you cannot count all of.
- 04Pollinators and food securitySystemBees and other insects carry pollen from flower to flower. If they all vanished, what would the world actually lose?Open this lesson
- 05Toxic build-up in a food chainProcessA pesticide at a level far too low to harm anything in the water can still kill the bird at the top of the food chain. How can that happen?Open this lesson
- 06Sampling an ecosystemInvestigationNobody has ever counted the daisies in a field. Every number you have ever read about how many of something there are was worked out from a sample — and a sample can be taken badly.Open this lesson
Back to all three sciences this half term The whole KS3 Biology course