Q. No.Which one of the following is an endangered plant species in India?
1. Rauwolfia serpentine 2. Santalum album (Sandalwood) 3. Cycasbeddonel 4. All of these
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The extinction of passenger pigeons was due to:
1. Increased number of predatory birds
2. Over-exploitation by humans
3. Non-availability of the food.
4. Bird flu virus infection
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which of the following statements is correct?
1. Parthenium is an endemic species of our country.
2. African catfish is not a threat to indigenous catfishes.
3. Steller’s sea cow is an extinct animal
4. Lantana is popularly known as carrot grass.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Among the ecosystem mentioned below, where can one find maximum biodiversity?
| 1. | Mangroves | 2. | Desert |
| 3. | Coral reefs | 4. | Alpine meadows |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which of the following group exhibit more species diversity?
| 1. | Gymnosperms | 2. | Algae |
| 3. | Bryophytes | 4. | Fungi |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which of the below-mentioned regions exhibit less seasonal variations?
| 1. | Tropics | 2. | Temperate |
| 3. | Alpines | 4. | Both (1) & (2) |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
What is common to the techniques (i) in vitro fertilization, (ii) Cryo preservation, and (iii) tissue culture?
1. All are in situ conservation
2. All are ex situ conservation methods
3. All require ultra-modern equipment and large space.
4. All are methods of conservation of extinct organisms.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
| Assertion (A): | Genetic diversity serves as a way for populations to adapt to changing environments. |
| Reason (R): | Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species. |
In the light of the above statements, choose the most appropriate answer from the options given below :
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
| Assertion (A): | Large islands near the mainland will have more species than smaller islands more distant from the mainland. |
| Reason (R): | The species richness of an island is determined by colonization and extinction. |
In the light of the above statements, choose the most appropriate answer from the options given below :
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
© 2024 GoodEd Technologies Pvt. Ltd.