Which of the following statements is incorrect?

(1) Lichen, an association of fungus and algae is an example of mutualism

(2) Those epiphytes which use other plants for support only and not for water or food supply and are examples of commensalism.

(3) Sea-anemone on hermit-crab is an example of protocooperation

(4) Mutualism, protocooperation, commensalism cannot be included under symbiosis.

Subtopic:  Population Interactions: Commensalism, Protocooperation & Mutualism |
 54%
AIIMS - 2008
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NEET 2023 - Target Batch - Aryan Raj Singh
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The growth curve of bacterial population in lab is plotted against time. What will be the shape of graph?

(1) Sigmoid

(2) Hyperbolic

(3) Ascending straight line

(4) Descending straight line

Subtopic:  Population: Exponential Growth Model |
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What is the Greek word for ecology?

(1) Ethology                     

(2) oikologia

(3) Synecology                 

(4)  Hexicology

Subtopic:  Introduction to Ecology |
 55%
AIIMS - 2010
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Bacteria, fungi, lower plants survive in adverse conditions by:

(1) diapause                           

(2) suspended growth

(3) migration                         

(4) formation of thick-walled spores

Subtopic:  Response of Organisms to Abiotic Factors (OLD NCERT) |
 71%
From NCERT
AIIMS - 2011
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What are labelled phases A, B and C in given
sigmoidal growth curve?


          A                 B                C
(1) Stationary      Log              Lag

(2) Lag                Stationary    Log

(3) Log                Lag              Stationary

(4) Lag                Log              Stationary

Subtopic:  Population: Logistic Growth Model |
 72%
AIIMS - 2011
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Monarch butterfly escapes from predators by

(1) foul smell                     

(2) bitter taste

(3) colour combination         

(4) rough skin

Subtopic:  Population Interactions: Predation |
 81%
From NCERT
AIIMS - 2011
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Which is correctly labelled with respect to the given diagram?

(1) B: Logistic curve

(2) C: Carrying capacity

(3) C: Exponential curve

(4) A: Carrying capacity

Subtopic:  Population: Exponential Growth Model | Population: Logistic Growth Model |
 80%
From NCERT
AIIMS - 2012
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Which of the following associations shows mutualism?

(1) Fig and wasp         

(2) Barnacles on whale

(3) Roundworms in human intestine

(4) Orchids on mango tree

Subtopic:  Population Interactions: Commensalism, Protocooperation & Mutualism |
 90%
From NCERT
AIIMS - 2014
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Match column I with column II and select the correct option from the codes given below.

Column I Column II
A. Commensalism (i) One inhibited other unaffected
B. Parasitism (ii) One benefited other unaffected
C. Mutualism  (iii) Both are benefitted
D. Amensalism (iv) One benefitted other harmed
 
A B C D
1. (iv) (ii) (iii) (i)
2. (iii) (iv) (ii) (i)
3. (ii) (iv) (iii) (i)
4. (ii) (iv) (i) (iii)
Subtopic:  Population Interactions: Parasitism | Population Interactions: Amensalism | Population Interactions: Commensalism, Protocooperation & Mutualism |
 86%
From NCERT
AIIMS - 2016
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The process where a population inhibits the growth of other population without affecting itself is known as 

(1) Amensalism

(2) Parasitism

(3) Mutualism

(4) Commensalism 

Subtopic:  Population Interactions: Amensalism |
 77%
From NCERT
AIIMS - 2017
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