| 1 |
A network of all the feeding relationships in an ecosystem is called. |
- A. Food chain
- B. Food web
- C. Trophic level
- D. Energy flow
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| 2 |
One of these cycles is also nutrients cycles. |
- A. Biogeochemical cycles
- B. Carbon cycles
- C. Water cycles
- D. Nitrogen cycles
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| 3 |
In an ecosystem the flow of _________ is one way, while _________ is/are constantly recycled. |
- A. Minerals, energy
- B. Energy minerals
- C. Oxygen, Energy
- D. Glucose, water
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| 4 |
Ectoparasite is |
- A. Ascaris
- B. Amoeba
- C. Leech
- D. Plasmodium
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| 5 |
In the food chain tree.... caterpillar.. robin..hawk....coyote, which is secondary consumer? |
- A. Caterpillar
- B. Robin
- C. Hawk
- D. Coyote
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| 6 |
Organisms in the ecosystem that are responsible for recycling of plant and animal wastes are. |
- A. Producers
- B. Consumers
- C. Decomposers
- D. Competitors
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| 7 |
Organisms in the ecosystem that are responisble for recycling of plant and animal wastes are: |
- A. Producers
- B. Consumers
- C. Decomposers
- D. Compititors
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| 8 |
All Ecosystem of the world join and makes. |
- A. Biosphere
- B. Heterosphere
- C. Geosphere
- D. Hydrosphere
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| 9 |
During nitrogen fixation nitrogen is converted into: |
- A. Nitrates
- B. nitrates
- C. ammonia
- D. all to these
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| 10 |
Conversion of Nitrates into nitrogen gas is called. |
- A. Denitrification
- B. Assimilation
- C. Ammonification
- D. Nitrogen fixtation
|