MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How should be the food chain so that a greater amount of energy is available for top consumers? |
| A. | Shorter |
| B. | Longer |
| C. | Moderate |
| D. | Neutral |
| Answer» B. Longer | |
| 2. |
Who formulated the 10% law of a food chain? |
| A. | Blackman |
| B. | Ernst Rutherford |
| C. | Gregor Mendel |
| D. | Raymond Lindemann |
| Answer» E. | |
| 3. |
What do we study in ecological energetics? |
| A. | Amount of air reaching Earth |
| B. | Quantity and path of energy flow from producers to consumers |
| C. | Amount of vacuum in the universe |
| D. | Quality of energy used by green plants for photosynthesis |
| Answer» C. Amount of vacuum in the universe | |
| 4. |
Which of the following consumers belong to the third level of energy flow? |
| A. | Herbivores |
| B. | Top carnivores |
| C. | Carnivores |
| D. | Decomposers |
| Answer» D. Decomposers | |
| 5. |
Which law states that there is a transfer of 10 percent energy in a food chain from one trophic level to another? |
| A. | Blackman Law |
| B. | 10 percent law |
| C. | Hardy Weinberg principle |
| D. | Mendel s law |
| Answer» C. Hardy Weinberg principle | |
| 6. |
What percent of energy is transferred in a food chain from one trophic level to another? |
| A. | 35% |
| B. | 20% |
| C. | 10% |
| D. | 54% |
| Answer» D. 54% | |
| 7. |
What is a grazing food chain alternatively called? |
| A. | Parasitic food chain |
| B. | Detritus food chain |
| C. | Auxiliary food chain |
| D. | Predator food chain |
| Answer» E. | |
| 8. |
Which is the missing organism?Detritus ? Frog Snake Peacock |
| A. | Elephant |
| B. | Tiger |
| C. | Earthworm |
| D. | Ostrich |
| Answer» D. Ostrich | |
| 9. |
During the flow of energy in an ecosystem, in which form is the energy dissipated during various metabolic activities? |
| A. | Ammonia |
| B. | Vapours |
| C. | Photons |
| D. | Heat |
| Answer» E. | |
| 10. |
What amount of sunlight is used for photosynthesis? |
| A. | 10% |
| B. | 0.02% |
| C. | 2% |
| D. | 80% |
| Answer» C. 2% | |
| 11. |
Which organisms form trophic levels in an ecosystem? |
| A. | Only bacteria |
| B. | Only plants |
| C. | Organisms linked in the food chain |
| D. | Only consumers |
| Answer» D. Only consumers | |
| 12. |
Which is the missing level of the organization?Autotrophs Herbivores Carnivores ? Decomposers |
| A. | Producers |
| B. | Detritivores |
| C. | Scavengers |
| D. | Top carnivores |
| Answer» E. | |
| 13. |
What is the missing level?Autotrophs Heterotrophs ? |
| A. | Producer |
| B. | Decomposers |
| C. | Scavengers |
| D. | Plants |
| Answer» C. Scavengers | |
| 14. |
What is the missing level?Autotrophs ? Decomposer |
| A. | Heterotrophs |
| B. | Carnivore |
| C. | Producer |
| D. | Scavengers |
| Answer» B. Carnivore | |
| 15. |
What is the missing level? ? Heterotrophs Decomposer? |
| A. | Carnivore |
| B. | Autotrophs |
| C. | Scavengers |
| D. | Humans |
| Answer» C. Scavengers | |