The biosphere
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This document discusses the biosphere and includes information about producers, consumers, food chains, food webs, and protecting biodiversity. It explains that plants and algae are producers that make their own food through photosynthesis. It also outlines the different types of consumers - primary, secondary, and tertiary - and their roles in food chains. Additionally, it notes that most living things are part of multiple interconnected food chains that make up a food web. The document closes by mentioning that extinction is a natural process but some species are endangered, so protected areas like national parks and biosphere reserves are created to protect wildlife.
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Unit 4 diagram
Plants are classified based on their reproductive structures and methods. Flowering plants reproduce sexually through flowers and seeds, while non-flowering plants reproduce asexually using spores. Angiosperms are flowering plants that produce fruits containing seeds, while gymnosperms are non-flowering plants like pine trees that bear seeds in cones. Ferns and mosses also reproduce using spores. All plants have roots, stems and leaves that carry out essential functions like absorbing water and minerals, providing structure, and capturing sunlight for photosynthesis. Photosynthesis is the key process by which plants use sunlight, carbon dioxide and water to produce their own food in the form of glucose.
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- 4. Food web Most living things are part of more than one food chain.There can be many different food chains in an ecosystem.The connected food chains make up a food web.
- 5. Extinction and Protecting biodiversity Is often a natural process and has ocurred for millions of years. Endangered species are those which are in danger of extinction. National parks and biosphere reserces are created to protect wildlife and its enviroment.