Ecology and Environment (KVPY Stream-SA (Class 11) Biology): Questions 1 - 6 of 52

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Question number: 1

» Ecology and Environment » Organisms and Environment » Population and Ecological Adaptations

Appeared in Year: 2014

MCQ▾

Question

Individuals of one kind occupying a particular geographic area at a given time are called

Choices

Choice (4) Response

a.

Biome

b.

Population

c.

Community

d.

Species

Question number: 2

» Ecology and Environment » Ecosystem » Energy Flow

Appeared in Year: 2014

MCQ▾

Question

What fraction of the assimilated energy is used in respiration by the herbivores?

Choices

Choice (4) Response

a.

10 percent

b.

60 percent

c.

80 percent

d.

30 percent

Question number: 3

» Ecology and Environment » Environmental Issues » Solid Waste Management

Appeared in Year: 2010

MCQ▾

Question

The interior of a cow-dung piece kept for a few days is quite warm. This is mostly because

Choices

Choice (4) Response

a.

Undigested material releases heat due to oxidation by air

b.

Dung is dark and absorbs a lot of heat

c.

Cellulose present in the dung is a good insulator

d.

Bacterial metabolism inside the dung releases heat

Question number: 4

» Ecology and Environment » Ecosystem » Ecological Services-Carbon Fixation, Pollination, Oxygen Release

Appeared in Year: 2015

MCQ▾

Question

Which one of the following is detrimental to soil fertility?

Choices

Choice (4) Response

a.

Nitrosomonas

b.

Saprophytic bacteria

c.

Nitrobacter

d.

Pseudomonas

Question number: 5

» Ecology and Environment » Organisms and Environment » Population and Ecological Adaptations

Appeared in Year: 2013

MCQ▾

Question

which of the following plant traits (characters) is NOT an adaptation to dry (Xeric) habitats

Choices

Choice (4) Response

a.

Small leaves and photosynthetic stem

b.

Highly developed root system

c.

Thin epidermis without a cuticle on stem and leaves

d.

Sunken stomata on leaves

Question number: 6

» Ecology and Environment » Ecosystem » Energy Flow

Appeared in Year: 2015

MCQ▾

Question

Which, among grass, goat, tiger and vulture, in a food chain, will have the maximum concentration of harmful chemicals in its body due to contamination of pesticides in the soil?

Choices

Choice (4) Response

a.

Goat since it eats the grass

b.

Tiger since it feeds on the goat, which feeds on the grass

c.

Vulture since it eats the tiger, which in turn eats the goat, which eats the grass

d.

Grass since it grows in the contaminated soil

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