| 1 |
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
|
| 2 |
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
|
| 3 |
Ectoparasite is |
- A. Ascaris
- B. Amoeba
- C. Leech
- D. Plasmodium
|
| 4 |
Which of the following is not an example of green house gas? |
- A. CO<sub>2</sub>
- B. Methane
- C. Oxygen
- D. Nitrous oxide
|
| 5 |
A relationship between two organisms in which individual of one species may kill and eat individuals of other species is called. |
- A. Symbiosis
- B. Competition
- C. Predation
- D. Mutualism
|
| 6 |
it is example of secondary consumer. |
- A. Cattle
- B. Snake
- C. Lion
- D. Frog
|
| 7 |
All herbivore animals are: |
- A. Grass eater
- B. Parasites
- C. Predaters
- D. Prey
|
| 8 |
Organisms that make their own food with help of sunlight, CO and H<sub>2</sub>O are called. |
- A. Consumers
- B. Producers
- C. Decomposers
- D. Predators
|
| 9 |
Which one of the following is tertiary consumer. |
- A. Owl
- B. Larva of burtterfly
- C. Deer
- D. Rabbit
|
| 10 |
Biosphere surrounding the Earth is about. |
- A. 17 KM
- B. 18 KM
- C. 19 KM
- D. 20 KM
|
