Grade 12 - Biology - WeLearn.et

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Unit 1: Application of Biology 5 Topics

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1.1 Application in Conservation of Natural Resources

1.2 Food and Nutrition Security

1.3 Creating Conscious Citizens and Ensuring Sustainable Development

1.4 Applications in Biotechnology

Unit 2: Microorganisms 27 Topics

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2.1 Introduction

2.1.1 Structure of Bacterial Cell

2.1.2 Bacterial Shapes

2.1.3 Nutritional Types of Bacteria

2.1.4 Reproduction of Bacteria

2.1.4.1 Asexual Reproduction

2.1.4.2 Sexual Reproduction in Bacteria

2.2.1 Beneficial Aspects of Archaea

2.2.2 Physical Factors Affecting Microbial Growth

2.3.2 Ecology of Fungi

2.3.3 Classification of Fungi

2.3.4 Reproduction in Fungi

2.3.5 Economic Importance of Fungi

2.4.1 Common Diseases Caused by Protozoa

2.5.1 Characteristics of Viruses

2.5.2 Viral Symmetry

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Unit 3: Energy Transformation 10 Topics

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Energy Transformation

3.1 Cellular Metabolism

3.2 Photosynthesis

3.2.1 Photosynthetic Pigments

3.2.5 Light-Independent Reactions (Calvin Cycle)

3.3 Contributions of Photosynthesis for the Continuity of Life, for O₂ and CO₂ Balance, and Global Warming

3.4 Cellular Respiration

3.4.1 Aerobic and Anaerobic Cellular Respiration

3.4.2 Mitochondrial Structure and Function in Cellular Respiration

3.4.3 The Site of Cellular Respiration

Unit 4: Evolution 11 Topics

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4.1.1 Definition

4.1.2 Theories of Evolution

4.1.3 The Evidence for Evolution

4.1.4 Natural Selection: Definition, Types & Examples

4.1.5 Human Evolution

4.1.7 Genetic Drift

4.1.8 Gene Flow (Immigration and Emigration)

4.1.9 Causes of Species Extinction

4.2 Renowned Anthropologists in Ethiopia

Unit 5: The Nervous System 15 Topics

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5.1 The Nervous System

5.1.1 Neurons and Their Functions

5.1.2 The Nerve Impulse and Transmission

5.1.3 Neurotransmitters

5.1.4 Types of the Nervous System

5.1.6 Reflex Action

5.1.7 Drug Abuse

5.2 The Human Sense Organs

5.2.2 The Tongue

5.2.6 The Endocrine System

5.2.7 The Endocrine Glands

Unit 6: Climate Change 13 Topics

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6.1 Climate Change: Causes and Effects

6.1.1 Definition of Climate Change

6.1.2 Causes of Climate Change

6.2 Effects of Climate Change

6.2.1 Effects of Climate Change on Biodiversity

6.2.2 Effects of Climate Change on Agriculture

6.2.3 Effect of Climate Change on Forest Productivity

6.2.4 Climate Change and Natural Disasters

6.3 International Conventions

6.3.1 The United Nations Framework Convention

6.3.2 Kyoto Protocol on Climate Change

6.3.3 International and National Practices of Implementation of Conventions

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