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Organisms and Populations · Question 69

AIPMT 2008MCQEasy📈 Topic in 12% papers+4−1
1

Quercus species are the dominant component in:

  1. Temperate deciduous forests
  2. Alpine forests
  3. Scrub forests
  4. Tropical rain forests

Answer

(1) Temperate deciduous forests

Solution

⇒ Quercus is the oak, a broad-leaved tree that sheds its leaves in autumn.

⇒ Oaks, together with maple, beech and chestnut, are the dominant trees of the temperate deciduous forests (in India, the temperate broad-leaved forests of the Himalayas are dominated by oaks).

⇒ Alpine forests are dominated by conifers and shrubs, scrub forests by thorny shrubs, and tropical rain forests by tall evergreen broad-leaved trees.

Answer: (1)

AIPMT 2008

Keep practising — Organisms and Populations

2

Geometric representation of age structure is a characteristic of :-

  1. Biotic community
  2. Landscape
  3. Ecosystem
  4. Population
AIPMT 2007
3

The population of an insect species shows an explosive increase in numbers during rainy season followed by its disappearance at the end of the season. What does this show ?

  1. The food plants mature and die at the end of the rainy season
  2. The population of its predators increases enormously
  3. Its population growth curve is of J-type
  4. S-shaped or sigmoid growth of this insect
AIPMT 2007
4

A high density of elephant population in an area can result in :-

  1. Mutualism
  2. Interspecific competition
  3. Predation on one another
  4. Intraspecific competition
AIPMT 2007
5

Annual migration does not occur in the case of

  1. Arctic tern
  2. salmon
  3. Siberian crane
  4. salamander
AIPMT 2006
6

The formula for exponential population growth is-

  1. dN/dt = rN
  2. dt/dN = rN
  3. rN/dN = dt
  4. dN/rN = dt
AIPMT 2006
7

Praying mantis is a good example of-

  1. Warning colouration
  2. Camouflage
  3. Mullerian mimicry
  4. Social insects
AIPMT 2006
8

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
AIPMT 2006
9

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

  1. Polar ice
  2. Greenland
  3. Antarctica
  4. Glaciers and Mountains
AIPMT 2005
10

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
AIPMT 2005
11

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
AIPMT 2005

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All NEET Botany chapters
Class 11The Living WorldBiological ClassificationPlant KingdomMorphology of Flowering PlantsAnatomy of Flowering PlantsCell: The Unit of LifeCell Cycle and Cell DivisionTransport in PlantsMineral NutritionPhotosynthesis in Higher PlantsRespiration in PlantsPlant Growth and Development
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