PYQSide ExamsMy practice

Organisms and Populations · Question 70

AIPMT 2007MCQEasy📈 Topic in 12% papers+4−1
1

Geometric representation of age structure is a characteristic of :-

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

Answer

(4) Population

Solution

As per NCERT, a population at any given time is composed of individuals of different ages.

⇒ If the age distribution (per cent individuals of a given age or age group) is plotted for the population, the resulting structure is called an age pyramid.

∵ Age distribution is an attribute of a population, not of an individual, a community or an ecosystem.

∴ Geometric representation of age structure (age pyramid) is a characteristic of a population.

Answer: (4)

AIPMT 2007

Keep practising — Organisms and Populations

2

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
3

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
4

Annual migration does not occur in the case of

  1. Arctic tern
  2. salmon
  3. Siberian crane
  4. salamander
AIPMT 2006
5

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
6

Praying mantis is a good example of-

  1. Warning colouration
  2. Camouflage
  3. Mullerian mimicry
  4. Social insects
AIPMT 2006
7

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
8

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

  1. Polar ice
  2. Greenland
  3. Antarctica
  4. Glaciers and Mountains
AIPMT 2005
9

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
10

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
11

Which one of the following pairs is mismatched ?

  1. Tundra - permafrost
  2. Savanna - acacia trees
  3. Prairie - epiphytes
  4. Coniferous forest - evergreen trees
AIPMT 2005

All Organisms and Populations PYQs →

PDFDownload Organisms and Populations PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
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
Class 12Reproduction in OrganismsSexual Reproduction in Flowering PlantsPrinciples of Inheritance and VariationMolecular Basis of InheritanceStrategies for Enhancement in Food ProductionMicrobes in Human WelfareOrganisms and PopulationsEcosystemBiodiversity and ConservationEnvironmental Issues
Other chaptersBiomolecules (Biology)