Select Chapter Topics:
Q. No.Given below are two population pyramids, both of India, one for year 2000 and another for year 2020:
1.
Pyramid A is of 2020 as it has a broader base
2.
Pyramid B is of 2000 as it has more females in the younger age groups
3.
Pyramid B is of 2020 as it has more females in the younger age groups
4.
Pyramid A is of 2000 as it has a broader base
Subtopic: Population Attributes |
53%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Consider the two given statements:
| I: | The life cycles of endoparasites are more complex than that of the ectoparasites. |
| II: | The morphological and anatomical features of endoparasites are greatly simplified. |
| 1. | Both I and II are correct and II explains I |
| 2. | Both I and II are correct but II does not explain I |
| 3. | I is correct but II is incorrect |
| 4. | Both I and II are incorrect |
Subtopic: Population Interactions: Parasitism |
54%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
| Assertion (A): | The female anopheles mosquito is not considered a parasite |
| Reason (R): | The bite of the female anopheles mosquito injects infective stage of malarial parasite into human blood |
| 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 |
Subtopic: Population Interactions: Parasitism |
62%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
In the logistic growth of a population, the acceleration phase is followed by a/an:
| 1. | Lag phase | 2. | Deceleration phase |
| 3. | Asymptote | 4. | Sudden crash phase |
Subtopic: Population: Logistic Growth Model |
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
In ‘competitive release’:
| 1. | differences among similar species whose distributions overlap geographically are accentuated in regions where the species co-occur, but are minimized or lost where the species' distributions do not overlap. |
| 2. | two species which compete for the same limited resource cannot coexist at constant population values. |
| 3. | there is an expansion of the range of a species when a competitor for its niche is removed. |
| 4. | there is a division of limited resources by species to help avoid competition in an ecological niche. |
Subtopic: Population Interactions: Predation |
52%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
There are 250 snails in a pond and within a year their number increases to 2500 by reproduction. What should be their birth rate (in per snail per year)?
1. 10
2. 9
3. 25
4. 15
1. 10
2. 9
3. 25
4. 15
Subtopic: Population Characters: Natality & Mortality |
Level 3: 35%-60%
NEET - 2023
Hints
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 |
66%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Identify the correctly matched pair:
1. Only I, II and III
2. Only I, III and IV
3. Only II, III and IV
4. I, II, III and IV
| 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 |
60%
Level 2: 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 |
64%
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.
Select Chapter Topics:
© 2025 GoodEd Technologies Pvt. Ltd.