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Q. No.Identify the correct statements:
| I. | Ramdeo Misra is revered as the Father of Ecology in India. |
| II. | Ecology studies the interactions among organisms and between the organism and its physical [abiotic] environment. |
| III. | The study of Ecology begins at cellular biological organisation level. |
| IV. | Ecology at the organism level is essentially physiological ecology. |
| 1. | Only I and II | 2. | All except III |
| 3. | Only II, III and III | 4. | I, II, III and IV |
Subtopic: Organisms and its Environment |
55%
Level 3: 35%-60%
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For the purpose of ecological studies, the term population is applicable to individuals reproducing:
| 1. | Asexually | 2. | Sexually |
| 3. | Both 1 and 2 | 4. | Neither 1 nor 2 |
Subtopic: Population Attributes |
78%
Level 2: 60%+
Hints
Unlike a population, an individual has:
| 1. | Birth and death | 2. | Birth rate |
| 3. | Death rate | 4. | Sex ratio |
Subtopic: Population Attributes |
91%
Level 1: 80%+
Hints
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
In the light of the above statements, choose the most appropriate answer from the options given below :
| Assertion (A): | Population ecology links ecology to population genetics and evolution. |
| Reason (R): | It is at the population level that natural selection operates to evolve the desired traits. |
| 1. | Both (A) and (R) are True and (R) explains (A). |
| 2. | Both (A) and (R) are True but (R) does not explain (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Population Attributes |
75%
Level 2: 60%+
Hints
In a pond, there were 20 lotus plants last year. If through reproduction 4 new lotus plants are added, the number of offspring per lotus per year would be:
| 1. | 0.2 | 2. | 0.4 |
| 3. | 2.0 | 4. | 4.0 |
Subtopic: Population Attributes |
85%
Level 1: 80%+
Hints
The given age pyramid represents a:
| 1. | Fast expanding population | 2. | Slowly expanding population |
| 3. | Stable population | 4. | Declining population |
Subtopic: Age Pyramid |
81%
Level 1: 80%+
Hints
Carefully observe the shape of the age-sex population pyramid for four countries. Which of them most likely represents the pyramid for Indian population?
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Population Characters: Age Structure & Migration |
74%
Level 2: 60%+
Hints
A population with a population pyramid that has an extremely broad base will most likely be:
| 1. | a rapidly expanding population |
| 2. | a stable population |
| 3. | a population where the birth rate equaled the death rate |
| 4. | a population where there were more old than young individuals |
Subtopic: Population Dynamic |
86%
Level 1: 80%+
Hints
The tiger census in our national parks and tiger reserves is often based on:
1. Pug marks
2. Cub count
3. Area allocation
4. Collar position
1. Pug marks
2. Cub count
3. Area allocation
4. Collar position
Subtopic: Population Attributes |
94%
Level 1: 80%+
Hints
In an area, there are 200 carrot grass plants but only a single huge banyan tree with a large canopy.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I. | The ecological role of the banyan tree in this community is negligible when compared to that of carrot grass. |
| II. | In this community, the percent cover or biomass is a more meaningful measure of the population size. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Population Attributes |
76%
Level 2: 60%+
Hints
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