EASY
Earn 100

Keystone species deserve protection because these

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Important Questions on Biodiversity and Conservation

MEDIUM
Statement I: Amazon rain forest is called the lungs of our planet.
Statement II: The number of species per unit area is called species richness.
EASY
An ecologist samples trees in multiple forest plots to determine species richness. Which ONE of the following can help determine the adequacy of sampling effort?
MEDIUM
Identify the incorrect statement
1. Speciation is generally a function of time
2. Tropical environment is less seasonal, relatively more constant and predictable
3. Solar energy contributes to high productivity
4. Temperate regions have remained relatively undisturbed for millions of years.
EASY
Which of the following pairs of gases is mainly responsible for green house effect?
EASY
The regression co-efficient for frugivorous birds in tropical forests of different continents is
EASY
The correct equation depicting species area relationship is:
EASY
In Amphibian and reptiles, the body temperature changes corresponding to external temperature. The organisms which show this kind of response is termed as -
EASY
Which one of the following statements is a general feature of global species diversity?
EASY

Match for M and N with the species-area relationship shown in the graphic representation below and choose the correct option.

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EASY

With reference to temperature adaptations, identify  A,B,C of the following graph

Question Image

EASY

Observe the following graph of regulators

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In the above graph I, II and III represent

EASY
In a comparative analogy between the aeroplane and ecosystem the Rivet Popper hypothesis used by Stanford ecologist Paul Ehrlich's, identify the correct matching?
Column I Column II
i) Rivets a) Ecosystem
ii) Aeroplane b) Species
iii) Popping of a rivet c) Key species
iv) Rivets on the wings d) Proper functioning of ecosystem
v) Flight safety e) A species to become extinct
EASY

Match the following:

  List - 1   List -2
A) Carbon monoxide I) Global warming
B) Carbon dioxide II) UV - rays
C) Sulphur dioxide III) Eutrophication
D) Ozone depletion IV) Acid rain
    V) Oxygen transport

The correct match is

MEDIUM
Which ONE of the following statements about ecosystem energetics is INCORRECT?
EASY
The exponent z of the species-area curve measured at continental scales is
EASY
Which of the following regions of the globe exhibits the highest species diversity?