- 1(current)
Q. No.Identify the incorrectly matched pair:
|
Population interaction |
Species A |
Species B |
|
|
1. |
Mutualism |
+ |
+ |
|
2. |
Predation |
+ |
- |
|
3. |
Parasitism |
- |
- |
|
4. |
Commensalism |
+ |
0 |
Subtopic: Population Interactions: Predation | Population Interactions: Parasitism |
95%
Level 1: 80%+
Hints
Predators do not:
| 1. | act as ‘conduits’ for energy transfer across trophic levels |
| 2. | keep prey populations under control |
| 3. | over-exploit their prey |
| 4. | help in maintaining species diversity in a community |
Subtopic: Population Interactions: Predation |
85%
Level 1: 80%+
Hints
When certain exotic species are introduced into a geographical area, they become invasive mainly because:
| 1. | The invaded land has unlimited resources for the introduced species |
| 2. | The invaded land does not have its natural predator |
| 3. | The population of the introduced species in the invaded land is very low |
| 4. | Introduced species do not face any competition in the introduced land |
Subtopic: Population Interactions: Predation |
81%
Level 1: 80%+
Hints
The most common means of morphological defense in plants against herbivory are:
| 1. | Spines | 2. | Thick cuticle |
| 3. | Thorns | 4. | Slime |
Subtopic: Population Interactions: Predation |
78%
Level 2: 60%+
Hints
Nicotine, caffeine, quinine and opium produced by plants are actually:
| 1. | Primary metabolites needed in reproduction |
| 2. | Secondary metabolites needed for growth |
| 3. | Alkaloids that are present in seeds |
| 4. | Defenses against grazers and browsers |
Subtopic: Population Interactions: Predation |
77%
Level 2: 60%+
Hints
- 1(current)
Q. No.
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