Predator/prey and parasite/host relationships are show as:
1. + / +
2. + / –
3. – / 0
4. – / –

Subtopic:  Population Interactions: Predation | Population Interactions: Parasitism |
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Level 1: 80%+
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Consider the given two statements:
Assertion (A): The logistic growth model is considered a more realistic model for most animal populations in natural environmental conditions.
Reason (R): Most animals are capable of showing active locomotion.
 
1. Both (A) and (R) are True and (R) correctly explains (A)
2. Both (A) and (R) are True and (R) does not correctly explain (A)
3. (A) is True, (R) is False
4. (A) is False, (R) is False
Subtopic:  Population: Logistic Growth Model |
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Level 1: 80%+
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In an ecological context, competition occurs when:
1. Two species mutually benefit from interacting with each other.
2. Individuals of different species require the same resources that are in limited supply.
3. One species benefits at the expense of another species.
4. Individuals of the same species cooperate to fend off predators.
Subtopic:  Population Interactions: Competition |
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Level 1: 80%+
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 Matching Type Match the type of interaction with its corresponding example:
Column I Column II
A Commensalism 1 Cattle egret riding on cattle
B Mutualism 2 Tapeworm in human intestine
C Parasitism 3 Lichen (Algae and Fungus)

1. A-2, B-1, C-3
2. A-1, B-3, C-2
3. A-3, B-1, C-2
4. A-1, B-2, C-3
Subtopic:  Population Interactions: Parasitism | Population Interactions: Commensalism, Protocooperation & Mutualism |
 92%
Level 1: 80%+
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To prevent herbivory, many plants produce:
1. Dry fruits
2. Secondary metabolites
3. Tall stems
4. Deep roots
Subtopic:  Population Interactions: Predation |
 89%
Level 1: 80%+
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An example of mutualism between plants and insect pollinators will be:
1. Bees pollinate flowers while obtaining nectar, which is their food source.
2. Flowers provide shelter to insects, and insects provide nothing in return.
3. Insects eat parts of the flower, which helps the plant reproduce.
4. Plants capture and digest insects to obtain nutrients.
Subtopic:  Population Interactions: Commensalism, Protocooperation & Mutualism |
 92%
Level 1: 80%+
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The weed, Calotropis, prevents herbivory by producing:
1. Cardiac glycosides 2. Strychnine
3. Quinine 4. Caffeine
Subtopic:  Population Interactions: Predation |
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Level 1: 80%+
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The population growing in a habitat with limited resources will show:
A. Lag phase, followed by phases of acceleration and deceleration and finally an asymptote.
B. The ability to realise its innate potential to grow in number and reach enormous densities in short time.
C. Exponential growth
D. Logistic growth
Choose the correct answer from the options given below:
1. A and B only
2. C and D only
3. A and D only
4. B and C only
Subtopic:  Population: Logistic Growth Model |
 88%
Level 1: 80%+
NEET - 2024
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Which pathogen requires a snail and a fish as secondary hosts to complete its life cycle?
1. Human liver fluke
2. Tapeworm
3. Pin worm
4. Ascaris lumbricoides
Subtopic:  Population Interactions: Parasitism |
 83%
Level 1: 80%+
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Consider the given two statements:
Assertion (A): When resources in the habitat are unlimited, the population grows in an exponential or geometric fashion.
Reason (R): When resources in the habitat are unlimited, each species has the ability to realise its innate potential fully and grow in number.
 
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: Exponential Growth Model |
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Level 1: 80%+
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