Differentiate between:
1)biodegradable and non-bio degradable substances
2)natural and artificial ecosystem
3)food chain and food web
please answer all the question and explain well
1)
3)
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1. The wastes decompose naturally in the environment. |
The wastes do not decompose naturally. |
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2. They are safe for the environment. |
They are harmful to the environment create pollution. |
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3. The wastes are made up of natural ingredients. |
The wastes are made up of synthetic materials. |
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4. They can be constantly reused. |
They cannot be recycled. |
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5. Example – waste papers, wood crumbles. |
Example – plastic bags, cans, disposable bottles. |
2)
| Artificial classification system | Natural classification system |
| Classification based on the basis of external, morphological characters like habit, leaf types. vegetative structures, etc. | Classification based on the basis of both external, morphological characters and internal features, like anatomy, embryology, phytochemistry, etc. |
| It was given by Linnaeus | It was given by Bentham and Hooker |
| It separated closely related species and was not a very good system of classification | It was a better system as compared to |
3)
| Food Chain | Food Web |
| Food web shows how several food chains are interconnected and dependent upon each other. | |
| It shows only one string of connected plants and animals and their food habits. | It shows the food habit of various different plants and animals in an ecosystem. |