pptx, 17.04 MB
pptx, 17.04 MB
pdf, 576.12 KB
pdf, 576.12 KB

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format:

Specification Point 2.70 - Understand the origin of carbon dioxide and oxygen as waste products of metabolism and their loss from the stomata of a leaf.

Specification Point 2.71 - Know the excretory products of the lungs, kidneys and skin.

Complete set of Chapter 4 Lessons are available.

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