1 ecosystems introduction
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This document discusses ecosystems and biomes. It defines an ecosystem as a system formed by the interaction between animals, plants, and their physical environment. An ecosystem has two parts: living things like plants and animals, and non-living surroundings like air, water, soil, and climate. It also defines a biome as characterized by dominant plant life and prevailing climate. The document instructs the reader to create a title page for ecosystems using their own drawings or pictures from a magazine.
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Here are some key points to include:
- Nutrients cycle through the ecosystem via decomposition of organic matter and uptake by plants and animals
- Leaves, dead animals etc fall to the forest floor and are broken down by decomposers like fungi and bacteria
- Nutrients are recycled back into the soil and taken up again by plants
- Cutting down trees breaks this cycle - nutrients are lost from the system when timber is removed
- Without trees, rainfall washes nutrients out of the exposed soil
- Over time the soil becomes depleted and unable to support plant growth
You could draw arrows showing the nutrient flow between components like trees, decomposers, soil, animals etc. Label each step in the cycle and explain
More from hfonfe (20)
1 ecosystems introduction
- 1. Watch the following clips.... Here and Here What are we studying??????
- 2. Ecosystems • An ecosystem is a system formed by the interaction of a community of animals and plants with their physical environment • Made up of two parts • 1. Living things (plants and animals) • 2. Their non-living surroundings or environments (Air, water, soil and climate) • A biome is characterized by the dominant forms of plant life and the prevailing climate
- 4. TASK: Title Page • Using your own drawings or pictures from the national geographic magazine, create a Title Page for Ecosystems.