| 1 |
Example of Ectoparasite is: |
- A. Becteria
- B. Virus
- C. Ascaris
- D. Mosquito
|
| 2 |
Abiotic component of ecosystem is. |
- A. Producers
- B. Herbivores
- C. carnivore
- D. Oxygen
|
| 3 |
Which one is not biotic factor. |
- A. Plants
- B. Animal
- C. Mud
- D. Bacteria
|
| 4 |
The lowest trophic level of an ecosystem always includes. |
- A. Herbivores
- B. Carnivores
- C. Producer
- D. Decomposers
|
| 5 |
The type of symbiotic relationship in which one member get benefit and other is unaffected is called. |
- A. Parasitism
- B. Mutualism
- C. Commensalism
- D. Predation
|
| 6 |
A group of organisms of the same species inhabiting a species geographical area ta a particular time is called: |
- A. population
- B. community
- C. ecosystem
- D. species
|
| 7 |
Conversion of Nitrates into nitrogen gas is called. |
- A. Denitrification
- B. Assimilation
- C. Ammonification
- D. Nitrogen fixtation
|
| 8 |
All the population that live in a habitat and interact in various ways with one another are collectively called: |
- A. ecosystem
- B. community
- C. biosphere
- D. populations
|
| 9 |
All populations collectively are called: |
- A. Species
- B. Biome
- C. Community
- D. Ecosystem
|
| 10 |
Biosphere surrounding the Earth is about. |
- A. 17 KM
- B. 18 KM
- C. 19 KM
- D. 20 KM
|