Today, in this video, we will cover Chapter 19: Organisms and their Environment. So I can cover some helpful exam tips and revision sessions for this chapter for free!
Subtopics Covered:
19.1 - Energy Flow
19.2 - Food Chains and Food Webs
19.3 - Nutrient Cycles
19.4 - Populations
#igcsebiology #foodchain #foodweb #foodpyramid #nitrogencycle #watercycle
