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. |
In which state do snails enter under unfavorable conditions? |
| A. | Diapause |
| B. | Hibernation |
| C. | Dormancy |
| D. | Aestivation |
| Answer» E. | |
| 2. |
In the below figure what does (B) line indicates? |
| A. | Regulators |
| B. | Partial conformers |
| C. | Scavengers |
| D. | Herbivores |
| Answer» B. Partial conformers | |
| 3. |
In which state do seeds enter under unfavorable conditions? |
| A. | Diapause |
| B. | Dormancy |
| C. | Hibernation |
| D. | Aestivation |
| Answer» C. Hibernation | |
| 4. |
Which alternative do the organisms have, if the stressful external conditions are localized or remain only for a short duration? |
| A. | Conform |
| B. | Regulate |
| C. | Migrate |
| D. | Speciate |
| Answer» D. Speciate | |
| 5. |
Heat loss or heat gain is the function of which area? |
| A. | Body volume |
| B. | Surface area |
| C. | Bodyweight |
| D. | Body size |
| Answer» C. Bodyweight | |
| 6. |
In what form does hibernation occur in animals? |
| A. | Occasional |
| B. | Rhythmic |
| C. | Periodic |
| D. | Intermittent |
| Answer» D. Intermittent | |
| 7. |
In which case, annual migration does not occur? |
| A. | Arc Tern |
| B. | Salamander |
| C. | Salmon |
| D. | Siberian Crane |
| Answer» C. Salmon | |
| 8. |
In which state do zooplankton species in lakes and ponds enter under unfavorable conditions? |
| A. | Diapause |
| B. | Aestivation |
| C. | Hibernation |
| D. | Speciation |
| Answer» B. Aestivation | |
| 9. |
Which structure in higher plants serves as a means to overcome a period of dormancy, stress and then helps in dispersal? |
| A. | Spores |
| B. | Petals |
| C. | Sepals |
| D. | Seed |
| Answer» E. | |
| 10. |
In which of the following organisms various kinds of thick-walled spores which help them survive unfavorable conditions and germinate on the availability of suitable environment found? |
| A. | Humans |
| B. | Fungi |
| C. | Banyan |
| D. | Mango |
| Answer» C. Banyan | |
| 11. |
For which of the following organisms thermoregulation is energetically expensive? |
| A. | Large animals |
| B. | Elephants |
| C. | Humming birds |
| D. | Man |
| Answer» D. Man | |
| 12. |
According to evolutionary biologists why mammals are successful? |
| A. | Expression of thoughts |
| B. | Constant osmotic concentration |
| C. | Right of speech |
| D. | Constant body temperature |
| Answer» E. | |
| 13. |
Which of the following organisms are capable of osmoregulation as well as thermoregulation? |
| A. | Cactus |
| B. | All mammals |
| C. | Bryophytes |
| D. | Angiosperms |
| Answer» C. Bryophytes | |
| 14. |
What organisms are able to maintain homeostasis which ensures a constant body temperature, constant osmotic concentration, etc., are called? |
| A. | Regulators |
| B. | Conformers |
| C. | Migratory |
| D. | Hibernating |
| Answer» B. Conformers | |
| 15. |
What is the organism in which body temperature and the osmotic concentration of the body fluid changes with the ambient temperature and change with that of the ambient water osmotic concentration respectively called? |
| A. | Regulators |
| B. | Conformers |
| C. | Migratory |
| D. | Hibernating |
| Answer» C. Migratory | |