Which of the following is not entirely true fact?
(1) Competition occurs when closely related species compete for the same resources that are limiting
(2) Totally unrelated species could compete for the same resource
(3) Resources need not be limiting for competition to occur; in interference competition, the feeding efficiency of one species might be reduced due to the interfering and inhibitory presence of the other species, even if resources are abundant.
(4) A complex interplay of interspecific interactions and environmental variability characterizes community structure

Connell's elegant field experiments are related to:

(1) Paramecium    

(2) Barnacles        

(3) Viruses           

(4) Protozoans

Select the false one:
(1) The niche of a population is the set of conditions and resources it uses
(2) Competitive exclusion principle was first described by Gause, for species of Paramecium
(3) If a new predator is introduced to an area with a type of prey that is limited in number the prey species is likely to decrease and possibly become extinct
(4) None of the above

Through resource partitioning:

(1) Two species can compete for the same prey

(2) Slight variation in niche allow closely related species to co-exist in the same habitat

(3) Competitive exclusion results in the success of the superior species

(4) Two species undergo character displacement that allows them to compete

The figure given below is a diagrammatic representation of response of organisms to abiotic factors. What do (i), (ii) and (iii) represent respectively?

When the value of 'r' is significantly low as compared to another species, it is better known by:

(1) Competition exclusion                   

(2) Interference competition

(3) Resource partition                        

(4) Competitive release

The four levels of biological organisation to which Ecology is basically concerned are:
A. Macromolecules-tissues-populations-biome
B. Macromolecules-organisms-population-biome
C. Tissues-organs-community-biome
D. Organisms-Populations-Community-Biome

Physiological ecology

1. works at organismic level
2. Tries to understand the adaptation with respect to survival only
3. Tries to understand the adaptation with respect to reproduction only
4. None of these

Wide variety of habitats within a biome can be a result of

1. Regional variation of temperature and precipitation.
2. Local variation of temperature and precipitation
3. Both A and B
4. Natural selection

Life exist in compost pits, permafrost polar regions. Our intestine host only 3-10 microbes. Major biomes of India include desert rainforest and tundra. The important physicochemical components alone chracterise different habitats.

How many of the above statements is/are wrong?

1. Three
2. Two
3. Only one
4. All four