Ecology and Environment-Ecosystem (KVPY Stream-SA (Class 11) Biology): Questions 1 - 5 of 23

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Question number: 1

» 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: 2

» 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: 3

» 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

Question number: 4

» Ecology and Environment » Ecosystem » Pyramids of Number, Biomass, Energy

Appeared in Year: 2009

MCQ▾

Question

Which of the following ecological food chain does not represent an erect pyramid of numbers.

Choices

Choice (4) Response

a.

GrassRodentSnake

b.

TreeBirdparasite

c.

GrassDeerTiger

d.

InsectChickenHuman

Question number: 5

» Ecology and Environment » Ecosystem » Energy Flow

Appeared in Year: 2014

MCQ▾

Question

What fraction of the assimilated energy used in respiration by the herbivores.

Choices

Choice (4) Response

a.

30 percent

b.

60percent

c.

10 percent

d.

80 percent

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