Organisms and Populations TS

For the purpose of ecological studies, the term population is applicable to individuals reproducing :

Unlike a population, an individual has :

A population with a population pyramid that has an extremely broad base will most likely be :

If a new habitat is just being colonized, which of the following is most likely to contribute to an increase in the population density ?

When population density is plotted against time, the exponential growth curve is :

The Verhulst – Pearl equation represents what type of population growth ?

The growth rate of a natural population will exactly be zero when:

As a part of their reproductive strategy, pelagic fishes :

Camouflage is :

The monarch butterfly acquires distasteful toxin during :

The ‘Competitive Exclusion Principle’ was given by : 

The clown fish is protected from predators by living among:

Barnacles growing on whale represent :

Which organism has a higher intrinsic rate of natural increase ?

The sigmoid growth curve is characteristic of :

Carrying capacity is :

Sea anemone and clown fish interaction is :

The clown fish is protected from predators by living among:

In commensalism :

Which of the following is NOT an adaptation of parasites ?

The human liver fluke requires how many intermediate hosts to complete its life cycle?

Eggs of parasitic birds resemble host’s eggs in :

The female mosquito is not considered a parasite because :

Which of the following is an ectoparasite ?

Which principle states that two closely related species competing for the same resources cannot coexist indefinitely ?

Abingdon tortoise became extinct mainly due to :

Which is NOT an example of competition?

Cuckoo laying eggs in crow’s nest is an example of : 

Five species of warblers coexist by:

Which barnacle is competitively superior in Connell’s study?

Which of the following is NOT an example of commensalism ?

The benefit to cattle egrets in commensalism with cattle is:

Which is a plant–animal commensalism example from NCERT?

Mycorrhiza is an association between:

In mycorrhiza, fungi help plants by:

Pollination by animals in return for nectar is :

Fig tree and wasp represent :

In fig–wasp interaction, the wasp benefits by:

Mediterranean orchid Ophrys uses what strategy for pollination ?

Male bee pseudocopulates with Ophrys flower because:

Co-evolution in mutualism means :-

Which is NOT a benefit to pollinators in mutualism ?

Plant–animal mutualism often evolves to prevent :

Carrying capacity in logistic growth is represented by :

Exponential growth occurs when :

Which is NOT a population attribute ?

Age pyramid with narrow base represents :

Which is NOT an interspecific interaction ?

Monarch butterfly’s distastefulness is due to :

The J-shaped curve is typical of: