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. |
The cattle egret shows commensalism with which organism? |
| A. | Grazing cattle |
| B. | Dog |
| C. | Cat |
| D. | Fish |
| Answer» B. Dog | |
| 2. |
Which plant has lost its chlorophyll and leaves in the course of evolution? |
| A. | Mango |
| B. | Cactus |
| C. | Neem |
| D. | <em>Cuscuta</em> |
| Answer» E. | |
| 3. |
Pseudo-copulation occurs in which of the following flower? |
| A. | Rose |
| B. | The Mediterranean orchid <em>Ophrys</em> |
| C. | <em>Mangifera indica</em> |
| D. | Neem |
| Answer» C. <em>Mangifera indica</em> | |
| 4. |
For what purpose does the female wasp use the fruit? |
| A. | Prey |
| B. | Predation |
| C. | Oviposition |
| D. | Playing |
| Answer» D. Playing | |
| 5. |
What is a mutualistic relationship between a fungus and photosynthesizing algae called? |
| A. | Mycorrhiza |
| B. | Lichens |
| C. | Cyanobacteria |
| D. | Sponges |
| Answer» C. Cyanobacteria | |
| 6. |
Who dominates on the rocky sea coasts of Scotland? |
| A. | Shark |
| B. | Aquatic plants |
| C. | Larger and competitively superior barnacle Balanus |
| D. | Smaller barnacle <em>Chathamalus</em> |
| Answer» D. Smaller barnacle <em>Chathamalus</em> | |
| 7. |
What is the phenomenon called in which two species competing for the same resources can avoid competition by choosing? |
| A. | Resource structuring |
| B. | Competition |
| C. | Predation |
| D. | Resource partitioning |
| Answer» E. | |
| 8. |
Which organism has become extinct in the Galapagos Islands? |
| A. | Goats |
| B. | Birds |
| C. | Abingdon tortoise |
| D. | Herbs |
| Answer» D. Herbs | |
| 9. |
What do South American lakes visiting flamingoes and resident fishes compete for? |
| A. | Phytoplankton |
| B. | Small fishes |
| C. | Water |
| D. | Zooplankton |
| Answer» E. | |
| 10. |
Which one of the following is a chemical produced by plants against grazers and browsers? |
| A. | Sap |
| B. | Opium |
| C. | Water |
| D. | Agar |
| Answer» C. Water | |
| 11. |
Which one of the following are a morphological means of defense? |
| A. | Leaves |
| B. | Petals |
| C. | Thorns |
| D. | Stem |
| Answer» D. Stem | |
| 12. |
What are insects living on plant sap called? |
| A. | Photophagous |
| B. | Cynophagous |
| C. | Autophagous |
| D. | Phytophagous |
| Answer» E. | |
| 13. |
In which condition the prey might become extinct? |
| A. | When the predator is less |
| B. | When the prey is overexploited |
| C. | When the prey is less |
| D. | When the predator is overexploited |
| Answer» C. When the prey is less | |
| 14. |
Which is an important predator in the rocky intertidal communities of the American Pacific Coast? |
| A. | <em>Pisaster </em> |
| B. | <em>Labeo</em> |
| C. | Camel |
| D. | Shark |
| Answer» B. <em>Labeo</em> | |
| 15. |
In which of the following a free-living organism catches kills and eats individuals of other species? |
| A. | Commensalism |
| B. | Parasitism |
| C. | Mutualism |
| D. | Predation |
| Answer» E. | |