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Organisms and Populations

AIPMT 2006MCQEasy📈 Topic in 100% papers+4−1
Ques. 1AIPMT 2006

Praying mantis is a good example of-

  1. Warning colouration
  2. Camouflage
  3. Mullerian mimicry
  4. Social insects

Answer

(2) Camouflage

Solution

As per NCERT, some species of insects and frogs are cryptically coloured (camouflaged) to avoid being detected easily by the predator.

The praying mantis is green or brown and leaf/twig-like, so it merges with the foliage, which hides it both from its predators and from the insects it preys upon.

∴ Praying mantis is an example of camouflage.

Answer: (2)

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Ques. 2AIPMT 2006

Niche overlap indicates-

  1. Sharing of one or more resources between the two species
  2. Mutualism between two species
  3. Active cooperation between two species
  4. Two different parasites on the same host
Ques. 3AIPMT 2005

More than 70% of world's fresh water is contained in –

  1. Polar ice
  2. Greenland
  3. Antarctica
  4. Glaciers and Mountains
Ques. 4AIPMT 2005

At which latitude, heat gain through insolation approximately equals heat loss through terrestrial radiation -

  1. 40 North and South
  2. 42 12 North and South
  3. 66 North and South
  4. 22 12 North and South
Ques. 5AIPMT 2005

Animals have the innate ability to escape from predation. Examples for the same are given below. Select the incorrect example

  1. Poison fangs in snakes
  2. Enlargement of body size by swallowing air in puffer fish
  3. Colour change in chameleon
  4. Melanism in moths
Ques. 6AIPMT 2005

Which one of the following pairs is mismatched ?

  1. Tundra - permafrost
  2. Savanna - acacia trees
  3. Prairie - epiphytes
  4. Coniferous forest - evergreen trees
Ques. 7AIPMT 2004

Certain characteristic demographic features of developing countries are -

  1. High fertility, low or rapidly falling mortality rate, rapid population growth and a very young age distribution
  2. High mortality, high density, uneven population growth and a very old age distribution
  3. High fertility, high density, rapidly rising mortality rate and very young age distribution
  4. High infant mortality, low fertility, uneven population growth and a very young age distribution
Ques. 8AIPMT 2004

In which of the following pairs is the specific characteristic of a soil not correctly matched ?

  1. Chernozems – Richest soil in the world
  2. Laterite – Contains aluminium compound
  3. Terra rossa – Most suitable for roses
  4. Black soil – Rich in calcium carbonate
Ques. 9AIPMT 2004

In which one of the following habitats does the diurnal temperature of soil surface vary most ?

  1. Grassland
  2. Desert
  3. Shrub land
  4. Forest
Ques. 10AIPMT 2003

Two opposite forces operate in the growth and development of every population. One of them relates to the ability to reproduce at a given rate. The force opposing it is called:

  1. Biotic potential
  2. Environmental resistance
  3. Morbidity
  4. Fecundity
Ques. 11AIPMT 2003

Mycorrhiza is an example of :-

  1. Ectoparasitism
  2. Decomposers
  3. Endoparasitism
  4. Symbiotic relationship

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