List I (Interacting species) | List II (Name of Interaction) | ||
A. | A Leopard and a Lion in a Forest/grassland | I. | Competition |
B. | A Cuckoo laying an egg in a Crow's nest | II. | Brood parasitism |
C. | Fungi and root of a higher plant mycorrhizae | I. | Mutualism |
D. | A cattle egret and a Cattle in a field | IV. | Commensalism |
Options: | A | B | C | D |
1. | II | III | I | IV |
2. | I | II | III | IV |
3. | I | II | IV | III |
4. | III | IV | I | II |
List I | List II | ||
A. | Logistic growth | I. | Unlimited resource availability condition |
B. | Exponential growth | II. | Limited resource availability condition |
C. | Expanding age pyramid | III. | The percent individuals of pre-reproductive age is largest followed by reproductive and post reproductive age groups |
D. | Stable age pyramid | IV. | The percent individuals of pre-reproductives and reproductive age group are same |
Options: | A | B | C | D |
1. | II | IV | III | I |
2. | II | I | III | IV |
3. | II | III | I | IV |
4. | II | IV | I | III |
1. | Cardiac glycosides | 2. | strychnine |
3. | toxic ricin | 4. | distasteful quinine |
1. | 10 | 2. | 9 |
3. | 25 | 4. | 15 |
Assertion (A): | A person goes to high altitude and experiences "Altitude Sickness" with symptoms like breathing difficulty and heart palpitations. |
Reason (R): | Due to low atmospheric pressure at high altitude, 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) |
Assertion (A): | Many species of small plants (herbs and shrubs) growing in forest are adapted to photosynthesize optimally under very low light conditions |
Reason (R): | Small plants are constantly over-shadowed by tall canopied trees. |
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. |
Assertion (A): | The availability of light on land is closely linked with that of temperature. |
Reason (R): | Sun is the source of both available light and temperature on land. |
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. |
Assertion (A): | Constant internal environment enhances overall 'fitness' of the species. |
Reason (R): | Homeostasis permits all biochemical reactions and physiological functions to proceed with maximal efficiency. |
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. |
Assertion (A): | Small animals tend to lose body heat very fast when it is cold outside. |
Reason (R): | Heat loss is a function of body volume. |
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. |