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Edexcel IGCSE Biology: Double Science 复习笔记 5.1.3 Yeast in Food Production Yeast in Food Production Microorganisms can be used by humans to produce foods and other useful substances One e...
Edexcel IGCSE Biology: Double Science 复习笔记 5.1.2 Crop Plants: Increasing Yield Crop Plants: Fertilisers Modern technology has increased food supply substantially in two key ways: Fertili...
Edexcel IGCSE Biology: Double Science 复习笔记 5.1.1 Crop Plants: Glasshouses & Polythene Tunnels Crop Plants: Glasshouses & Polythene Tunnels If a plant is given unlimited light, ca...
Edexcel IGCSE Biology: Double Science 复习笔记 5.1.1 Crop Plants: Glasshouses & Polythene Tunnels Crop Plants: Glasshouses & Polythene Tunnels If a plant is given unlimited light, ca...
Edexcel IGCSE Biology: Double Science 复习笔记 4.4.2 Greenhouse Gases Greenhouse Gases A greenhouse gas is a gas that absorbs infrared radiation from the Sun so it remains trapped in the Ear...
Edexcel IGCSE Biology: Double Science 复习笔记 4.4.1 The Effects of Pollution The Effects of Pollution Human population growth globally has been increasing exponentially for the last 150 yea...
Edexcel IGCSE Biology: Double Science 复习笔记 4.3.1 Water Cycle & Carbon Cycle The Water Cycle Water molecules move between various locations – such as rivers, oceans and the atmosphere...
Edexcel IGCSE Biology: Double Science 复习笔记 4.2.3 Food Pyramids & Transfer of Energy Food Pyramids A pyramid of numbers shows how many organisms we are talking about at each level of ...
Edexcel IGCSE Biology: Double Science 复习笔记 4.2.2 Food Webs Food Webs A food web is a network of interconnected food chains Food webs are more realistic ways of showing connections betwee...
