Biology - Mock Test 114

Question 1131

Insectivorous plants are adopted to soils ?

A) Deficient in nitrogenous compounds B) Deficient in water C) Rich in water D) Deficient in trace elements

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Question 1132

Information about birth rate, death rate, sex ratio, age distribution etc. of a population is obtained from ?

A) Mortality rate B) Life table C) Natality table D) Both A and C

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Question 1133

The role of an organism in the ecological system is known as ?

A) Niche B) Habitat C) Herbivory D) Interaction

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Question 1134

Individuals of a species which occur in a particular area constitute ?

A) Population B) Fauna C) Flora D) Flora and Fauna

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Question 1135

In ecological succession from pioneer to climax community, the biomass shell ?

A) No relation B) Increase and then decrease C) Decrease D) Increase continuously

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Question 1136

The maximum amount of water that a soil can hold, by capillary action is called ?

A) Wilting point B) Water potential C) Field capacity D) Osmotic potential

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Question 1137

Plant succession occurring in a sandy area is ?

A) Xerosere B) Halosere C) Psammosere D) Hydrosere

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Question 1138

In an ecosystem Biotic factors affect the survival of an organism in that ecosystem. They include ?

A) competition for food and water B) competition for shelter C) co-operation to help find food D) All of these

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Question 1139

Which of the followings take part in symbiosis of lichen?

A) Fungus-Fungus B) Alga-Alga C) Alga-Fungus D) Fungus-Gymnosperm

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Question 1140

In a population, if the rate of addition of new members is higher than the rate of individuals lost, it shows ?

A) Exponential growth B) Declined growth C) Zero population growth D) none of these

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