No predator can become proficient at acquiring prey because:

1. Predators are not as intelligent as prey.
2. Predators are too large to be fast enough.
3. Prey populations evolve more rapidly than predator populations.
4. Prey populations evolve anti-predatory traits.

Subtopic:  Population Interactions: Predation |
 53%
From NCERT
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Which of the following organisms will be the first to colonize a bare rock?

1. Annual plants

2. Lichens

3. Perennail plants

4. Herbs and shrubs

Subtopic:  Ecological Succession (OLD NCERT) |
 94%
From NCERT
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Most food chains are composed of 

1. 1 or 2 species

2. 3 or 4 species

3. 9 or 10 species

4. More than 16 species

Subtopic:  Energy Flow |
 76%
From NCERT
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The phosphorus cycle is unusual in that it is entirely:

1. Within aquatic ecosystems

2. Within terrestrial ecosystems

3. Sedimentary

4. Gaseous

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 72%
From NCERT
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During ecological succession

(1) the gradual and predictable change in species composition occurs in a given area

(2) the establishment of a new biotic community is very fast in its primary phase

(3) the numbers and types of animals remain constant

(4) the changes lead to a community that is in near equilibrium with the environment and is called pioneer community

Subtopic:  Ecological Succession (OLD NCERT) |
 70%
From NCERT
NEET - 2015
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Which ecosystem has the maximum biomass?

(1) Forest ecosystem 

(2) Grassland ecosystem 

(3) Pond ecosystem 

(4) Lake ecosystem 

Subtopic:  Components & Types of Ecosystems |
 72%
NEET - 2017
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Th primary producers of the deep-sea hydrothermal vent ecosystem are

(1) green algae

(2) chemosynthetic bacteria

(3) blue-green algae

(4) coral reefs

Subtopic:  Energy Flow |
 59%
NEET - 2016
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Which one of the following is a characteristic feature of cropland ecosystem?

(1) Least genetic diversity

(2) The absence of weeds

(3) Ecological succession

(4) The absence of soil organisms

Subtopic:  Components & Types of Ecosystems |
 54%
NEET - 2016
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Which of the following would appear as the pioneer organisms on bare rocks?
(1) Liverworts

(2) Mosses

(3) Green algae

(4) Lichens

Subtopic:  Ecological Succession (OLD NCERT) |
 88%
From NCERT
NEET - 2016
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The term ecosystem was coined by

(1) AG Tansley                 

(2) E Haeckel

(3) E Warming                 

(4) EP Odum

Subtopic:  Introduction |
 65%
NEET - 2016
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