Q. No.
Which of the following is not usually an adaptation for a parasitic mode of life?
| 1. | Loss of unnecessary sense organs |
| 2. | Presence of adhesive organs or suckers |
| 3. | Loss of the digestive system |
| 4. | Low reproductive capacity |
Flowers and their insect pollinators must undergo co-evolution because:
| 1. | Without pollinators plants may get extinct |
| 2. | Plants have to reward the pollinators |
| 3. | The relationship must be safeguarded against cheaters |
| 4. | Insects are the major pollinators of plants |
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.
Identify the biome that is not correctly matched with its mean annual temperature and mean annual precipitation:
|
|
Biome |
Mean annual temperature [0C] |
Mean annual precipitation [cm] |
|
1. |
Desert |
0 – 25 |
25 – 100 |
|
2. |
Temperate Forest |
10 – 22 |
50 – 220 |
|
3. |
Tropical forest |
20 – 25 |
150 – 425 |
|
4. |
Coniferous forest |
0 – 15 |
50 – 250 |
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 relationship between cattle egret and grazing cattle can be best described as:
| 1. | Mutualism | 2. | Commensalism |
| 3. | Parasitism | 4. | Competition |
Match plants in Column I with their Ecological adaptations in Column II and select the correct answer from the codes given:
|
|
Plants |
|
Ecological adaptation |
|
A. |
Mangroves |
P. |
High-temperature optima for photosynthesis |
|
B. |
Heliophytes |
Q. |
Deep root systems |
|
C. |
Water hyacinth |
R. |
Viviparity |
|
D. |
Prosopis |
S. |
Inflated petiole |
Codes:
| A | B | C | D | |
| 1. | R | P | S | Q |
| 2. | S | P | R | Q |
| 3. | R | P | Q | S |
| 4. | P | Q | R | S |
Autecology is the:
| 1. | Relation of heterogeneous populations to their environment |
| 2. | Relation of an individual to its environment |
| 3. | Relation of a community to its environment |
| 4. | Relation of a biome to its environment |
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.
Biosphere is:
| 1. | A component in the ecosystem |
| 2. | Composed of the plants present in the soil |
| 3. | Life in the outer space |
| 4. | Composed of all living organisms present on earth which interact with the physical environment |
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.
Salt concentration (Salinity) of the sea measured in parts per thousand is:
1. 10-15
2. 30-70
3. 0-5
4. 30-35
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 will happen to a well-growing herbaceous plant in the forest if it is transplanted outside the forest in a park?
| 1. | It will grow normally |
| 2. | It will grow well because it is planted in the same locality |
| 3. | It may not survive because of changes in its microclimate |
| 4. | It grows very well because the plant gets more sunlight |
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.
© 2024 GoodEd Technologies Pvt. Ltd.