Textbook
Chapter 1: Plant Tissue Organisation and Growth
Chapter 2: Structure and Leaf Function
Chapter 3: Nutrition in Plants
Chapter 4: Transportation in Plants
Chapter 5: Response in Plants
Chapter 6: Sexual Reproduction in Flowering Plants
Chapter 7: Adaptation of Plants to Different Habitats
Chapter 8: Biodiversity
Chapter 9: Ecosystem
Chapter 10: Environmental Sustainability
Chapter 11: Inheritance
Chapter 12: Variation
Chapter 13: Genetic Technology
Chapter 9: Ecosystem
What you need to learn in this chapter
In this chapter, we will be learning about communities and ecosystems. We will define species, population, community, habitat, niche, and ecosystem. We will also identify the biotic and abiotic components in an ecosystem. Next, we will study ecology and population. We will describe the factors that influence population distribution and analyze data to estimate the size of populations using techniques such as quadrat sampling and mark-recapture method. By the end of this chapter, we will have a better understanding of how different species interact within an ecosystem and how populations are affected by various factors.
Topics in this chapter
1. Community and Ecosystem
What you will learn in this topic
- Define: (i) species. (ii) population. (iii) community. (iv) habitat. (v) niche. (vi) ecosystem
- Identify the components of biosis and components of abiosis in an ecosystem
- Describe autotrophic nutrition and heterotrophic nutrition
- Communicate about the components of biosis by trophic level
- Describe the flow of energy in a food chain
- Describe the ecological pyramid: (i) number pyramid. (ii) biomass pyramid. (iii) energy pyramid
- Simplify the types of interactions between the components of biosis: (i) parasitism. (ii) commensalism. (iii) mutualism. (iv) saprophytism. (v) competition. (vi) predation
- Explain the mangrove swamp ecosystem from the aspect of: (i) biosis component. (ii) abiotic component. (iii) adaptation of mangrove trees. (iv) colonization and displacement. (v) the importance of the mangrove swamp ecosystem
2. Ecology and Population
What you will learn in this topic
- Describe the factors that affect population distribution
- Analyze data to estimate population size of organisms using: (i) quadrat sampling technique. (ii) capture-sign-release-recapture technique
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