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Which of the following statements is the most appropriate example of character displacement? (1) Two related species depending on the same prey species avoid competition by feeding at different times […]

Ecological compression differs from character displacement in that it operates on a (1) shorter timescale and does not involve heritable change. (2) longer timescale and does not involve heritable change. […]

Which statement explains the phenomenon of character displacement? (1) Organism of different species are morphologically similar in different habitat but looks different where they live together (2) Organism of different […]

Certain species of bird shows variation in beak size only when they are sympatric. This is example of (1) Character displacement (2) Natural Selection (3) Ecological variations (4) Mutations   […]

The same species of mosses may have different phenotype adapted to different altitude. They are termed as (1) Ecotype (2) Phenotype (3) Race (4) Ecophene   Moss Ecotypes: How the […]

Individuals occupying a particular habitat and adapted to it phenotypically but not genotypically are known as (1) Ecophenes (2) Ecotypes (3) Ecospecies (4) Coenospecies   Ecophenes: Individuals Phenotypically Adapted to […]

Individuals with greater mass have a smaller surface area to volume ratio, which helps to conserve heat. This is known as (1) Leibig’s rule. (2) Cope’s rule. (3) Gloger’s rule […]

A positive association between absolute average individual fitness and population size over some finite interval is known as (1) Allee effect (2) Founder effect (3) Rensch’s rule (4) Bergmann’s rule […]

A general increase in the average body mass of animal population within a species with latitude is known as (1) Allen’s rule (3) Bergmann’s rule (2) Allee effect (4) Hamilton’s […]

The birds in tropics are generally smaller in size because of- (1) To increase surface area to volume ratio (2) To decrease surface area to volume ratio (3) For easy […]