Select Chapter Topics:
Q. No.Identify the correctly matched pair:
Scientist
Contribution
I:
Connell
Competitive release
II:
Gauss
Competitive exclusion principle
III:
MacArthur
Resource partitioning
IV:
Tillman
Rivet popper hypothesis
1. Only I, II and III
2. Only I, III and IV
3. Only II, III and IV
4. I, II, III and IV
Subtopic: Population Interactions: Competition |
59%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Which of the following is least likely to affect the size of a population?
| 1. | Competition | 2. | Brood parasitism |
| 3. | Commensalism | 4. | Predation |
Subtopic: Population Interactions: Commensalism, Protocooperation & Mutualism |
63%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
To evolve the desired traits, natural selection operates at the level of:
| 1. | Organism | 2. | Population |
| 3. | Species | 4. | Biological community |
Subtopic: Population Attributes |
64%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Consider the given two statements:
| Assertion (A): | The tiger census in our national parks and tiger reserves is often based on pug marks and fecal pellets. |
| Reason (R): | For ecological investigations, it is mandatory to know the absolute population densities in all instances. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | (A) is True but (R) is False |
| 3. | (A) is False but (R) is True |
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A). |
Subtopic: Population Attributes |
56%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Consider the given two statements:
| Assertion (A): | Predators in nature are ‘prudent’. |
| Reason (R): | Predators keep prey populations under control. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 3. | (A) is True, (R) is False |
| 4. | (A) is False, (R) is True |
Subtopic: Population Interactions: Predation |
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Select the correct equation for population density at time t+1,
1. \({N_{t+1} =N_t} + [(B + I) - (D +E)]\)
2. \({N_{t+1} =N_t} \times [(B + E) - (D + I)]\)
3. \({N_{t+1} =N_t} + [(B + I) + (D + E)]\)
4. \({N_{t+1} =N_t} \times [(B + D) - (E + I)]\)
1. \({N_{t+1} =N_t} + [(B + I) - (D +E)]\)
2. \({N_{t+1} =N_t} \times [(B + E) - (D + I)]\)
3. \({N_{t+1} =N_t} + [(B + I) + (D + E)]\)
4. \({N_{t+1} =N_t} \times [(B + D) - (E + I)]\)
Subtopic: Population Characters: Natality & Mortality |
70%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
In ecological terms, a population should be defined as a group of:
1. Communities in an ecosystem
2. Species in a community
3. Individuals in a family
4. Individuals in a species
1. Communities in an ecosystem
2. Species in a community
3. Individuals in a family
4. Individuals in a species
Subtopic: Introduction to Ecology |
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Which of the following statements captures the essence of Gause's principle of competitive exclusion?
| 1. | "the more abundant species will exclude the less abundant species through competition" |
| 2. | "competition for the same resources excludes species having different life styles" |
| 3. | "no two species can occupy the same niche indefinitely when resources are limited" |
| 4. | "larger organisms exclude smaller ones through competition as in the case of large trees controlling underbrush" |
Subtopic: Population Interactions: Competition |
66%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Logistic growth in a population is characterized by:
| 1. | A constant rate of growth regardless of population size. |
| 2. | An exponential growth followed by a stabilization at the carrying capacity. |
| 3. | Decrease in population size after reaching the carrying capacity. |
| 4. | A linear increase in population size over time. |
Subtopic: Population: Logistic Growth Model |
64%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Determine which of the following statements about reproductive strategy of populations much below the carrying capacity is most likely to be correct?
| 1. | They typically inhabit stable environments. |
| 2. | They produce a few offspring with high survival rates. |
| 3. | They have a high intrinsic growth rate. |
| 4. | They reproduce multiple times in their life and have a very long life span |
Subtopic: Population: Logistic Growth Model |
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Select Chapter Topics:
© 2026 GoodEd Technologies Pvt. Ltd.