Monarch Butterfly

1. has biochemical defense mechanism
2. acquires biochemical defense mechanism during its caterpillar stage by feeding on poisonous weed
3. is highly distasteful to predator Zebra
4. both 1 and 2

Subtopic:  Population Interactions: Predation |
 90%
From NCERT
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How many insects are phytophagous? And such interaction is called as

1. 30%, parasitism

2. 25% predation

3. 33% commensalism

4. 40% mentalism

Subtopic:  Population Interactions: Predation |
 82%
From NCERT
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Acacia and Cactus show which kind of defenses?

1. Biochemical

2. Biomolecular

3. Morphological

4. Behavioural

Subtopic:  Population Interactions: Predation |
 89%
From NCERT
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Calotropis doesn't allow any cows and goats to browse around by releasing

1. Cardiac glucosamine

2. Cardiac glucoside

3. Cardiac glycoside

4. Cardiac nitroxide

Subtopic:  Population Interactions: Predation |
 85%
From NCERT
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Which of the following is not produced plants as a product of defense mechanism?

1. Nicotine, quinine

2. Caffeine

3. Strychnine

4. Tumrine

Subtopic:  Population Interactions: Predation |
 79%
From NCERT
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Darwin was convinced enough for considering………. A potential force in organic evolution.

1. Interspecific competition

2. Intraspecific competition

3. Mutualism

4. Predation

Subtopic:  Population Interactions: Competition |
 83%
From NCERT
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Competition occurs when closely related species compete for the same resources that are limiting.

In this statement two concepts are emphasized, one is closely related species and the other the resources are limiting.

1. first concept is entirely wrong while the second concept is entirely correct.

2. First concept is right while the second is partially correct

3. Both are not entirely correct

4. Both are entirely correct.

Subtopic:  Population Interactions: Competition |
 56%
From NCERT
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In some shallow South American lakes visiting Flamingoes and Resident Fishes show which kind of interaction?

1. Competition

2. Predation

3. Parasitism

4. Commensalism

Subtopic:  Population Interactions: Competition |
 82%
From NCERT
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The feeding efficiency of one species might be reduced due to the inhibitory presence of another species with abundant food and space. What does it imply?

1. For competition to occur, resources need not be limited

2. Interference competition

3. They are competing over the same food

4. Both 1 and 2

Subtopic:  Population Interactions: Competition |
 72%
From NCERT
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Competition can be defined best as

1. A process in which the fitness of one species i.e. r is significantly lower in the presence of another species.

2. Competition occurs when closely related species compete for the same resources that are limiting.

3. A process which not always lead to loss of both the organisms

4. Both 1 and 2

Subtopic:  Population Interactions: Competition |
 52%
From NCERT
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