The major reservoir for phosphorous is 

(1) Aquifers

(2) Soil and rocks

(3) The atmosphere

(4) Clouds

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 94%
From NCERT
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Both hydrach and xerarch successions:

1. Take same time

2. Have similar sere

3. Lead to mesic conditions

4. Have same pioneer species

Subtopic:  Ecological Succession (OLD NCERT) |
 89%
From NCERT
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About what percent of the global carbon is contained in the atmosphere?

1. 71

2. 49

3. 17

4. about 1

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 51%
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) |
 95%
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) |
 72%
From NCERT
NEET - 2015
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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) |
 89%
From NCERT
NEET - 2016
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In which of the following both pairs have the correct combination?

1. Gaseous nutrient cycle
Sedimentary nutrient cycle 
Carbon and nitrogen
Sulphur and phosphorus
2.  Gaseous nutrient cycle
Sedimentary nutrient cycle 
Carbon and sulphur
Nitrogen and phosphorus
3. Gaseous nutrient cycle
Sedimentary nutrient cycle
Nitrogen and sulphur
Carbon and phosphorus
4. Gaseous nutrient cycle
Sedimentary nutrient cycle
Sulphur and phosphorus
Carbon and nitrogen 
Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 88%
From NCERT
NEET - 2015
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Secondary succession takes place on/in

(1) bara rock

(2) degraded forest

(3) newly created pond

(4) newly cooled lava

Subtopic:  Ecological Succession (OLD NCERT) |
 85%
From NCERT
NEET - 2015
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Match the following and select the correct option.

     Column I                      Column II

A.  Earthworm                 1. Pioneer species

B. Succession                  2. Detritivore

C. Ecosystem service       3. Natality

D. Population growth        4. Pollination

      A          B         C         D

(1) 1           2         3         4

(2) 4           1         3         2

(3) 3           2         4         1

(4) 2           1         4         3 

Subtopic:  Decomposition | Mineral Cycling & Ecosystem Services (OLD NCERT) |
 94%
From NCERT
NEET - 2014
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Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with

four blanks (A-D). Identify the blanks.

Given below is a simplified model of phosphorus cycling in a terrestrial  ecosystem - NEETLab

A B C D
1. Rock minerals Detritus Litterfall Producers
2. Litterfall Producer Rock minerals Detritus
3. Detritus Rock minerals Producer Litterfall
4. Producer Litterfall Rock minerals Detritus
Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 82%
From NCERT
NEET - 2014
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