In a network, different types of organisms are connected at different trophic levels are called:

1. Food Web
2. Energy Flow
3. Food Chain
4. Trophic Structure
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Answer: A
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Corals live only in the:

1. Equatorial Seas
2. Arctic Seas
3. Tropical Seas
4. Antartctic Seas
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Answer: C
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Corals cannot survive in waters with temperatures below:

1. 15°C
2. 20°C
3. 25°C
4. 30°C
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Answer: B
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Corals have types:

1. 2
2. 3
3. 4
4. 5
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Answer: C
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Diatom is a _____ with a single cell:

1. Plankton
2. Coral
3. Fish
4. Crab
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Answer: A
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One of the following inflict considerable pressure and pain on environment and all the species:

1. Human Beings
2. Plants
3. Lion
4. Tiger
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Answer: A
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The second generation of pesticide which enter into the food chain is:

1. Malathion
2. Boric Acid
3. DDT
4. Diazinon
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Answer: C
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DDT stands for:

1. dichloro-diphenyl-trichloroethane
2. dichloro-direct-trichloroethane
3. dichloro-distal-trichloroethane
4. dichloro-diphyel-trichloroethane
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Answer: A
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DDT was discovered by:

1. Paul Muller
2. Rachel Carson
3. David Brower
4. Earnest Haeckel
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Answer: A
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DDT was discovered in:

1. 1938
2. 1939
3. 1940
4. 1941
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Answer: B
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