Q. No.When we migrate from dark to light, we fail to see for sometimes but after a time visibility becomes normal. It is an example of:
1. Accommodation
2. Adaptation
3. Mutation
4. Photoperiodism
1. Accommodation
2. Adaptation
3. Mutation
4. Photoperiodism
Match List-I with List-II
| List-I | List-II |
| (a) Allen's Rule | (i) Kangaroo rat |
| (b) Physiological adaptation | (ii) Desert lizard |
| (c) Behavioural adaptation | (iii) Marine fish at depth |
| (d) Biochemical adaptation | (iv) Polar seal |
Choose the correct answer from the options given below :
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (i) | (ii) | (iii) |
| 2. | (iv) | (iii) | (ii) | (i) |
| 3. | (iv) | (ii) | (iii) | (i) |
| 4. | (iv) | (i) | (iii) | (ii) |
| Assertion (A): | A person goes to a high altitude and experiences 'altitude sickness' with symptoms like breathing difficulty and heart palpitations. |
| Reason (R): | Due to low atmospheric pressure at high altitudes, the body does not get sufficient oxygen. |
| 1. | (A) is true but (R) is false. |
| 2. | (A) is false but (R) is true. |
| 3. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 4. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
In which one of the following habitats does the diurnal temperature of the soil surface vary most?
1. Forest
2. Desert
3. Grassland
4. Shrubland
In which of the following pairs is the specific characteristic of a soil not correctly matched:
1. Terra rossa – Most suitable for roses
2. Chernozems – the richest soil in the world
3. Black soil – Rich in calcium carbonate
4. Laterite – Contains an aluminium compound
A terrestrial animal must be able to:
1. Conserve water
2. Actively pump salts out, through the skin
3. Excrete large amounts of salts in urine
4. Excrete large amounts of water in urine
In which biome a new plant may adapt soon?
1. Tropical rain forest
2. Desert
3. Mangrove
4. Sea island
Acacia, Prosopis and Capparis belong to:
1. Deciduous forest
2. Tropical forest
3. Thorn forest
4. Evergreen forest
Which one of the following pairs is mismatched:
1. Savanna - acacia trees
2. Coniferous forest - evergreen trees
3. Tundra - permafrost
4. Prairie - epiphytes
© 2024 GoodEd Technologies Pvt. Ltd.