Atomos Test Generator Free PYQs ExamsMy practice Log in / Sign up free

Organisms and Populations

AIPMT 2004MCQEasy📈 Topic in 12% papers+4−1
Ques. 1AIPMT 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

Answer

(2) Desert

Solution

Diurnal variation is the difference between day and night temperature.

In a desert the soil is sandy and bare (no vegetation cover) and the air is dry with little cloud, so the soil surface heats up very quickly by day and loses heat rapidly at night by radiation.

∴ The diurnal temperature of the soil surface varies the most in deserts.

Answer: (2)

Keep practising — Organisms and Populations

Ques. 2AIPMT 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. 3AIPMT 2003

Mycorrhiza is an example of :-

  1. Ectoparasitism
  2. Decomposers
  3. Endoparasitism
  4. Symbiotic relationship
Ques. 4AIPMT 2002

The growth curve of bacterial population in lab is plotted against time. What will be the shape of graph?

  1. Sigmoid
  2. Hyperbolic
  3. Ascending straight line
  4. Descending straight line
Ques. 5AIPMT 2002

Choose the correct sequence of stages of growth curve for bacteria.

  1. Lag, log, stationary, decline phase
  2. Lag, log, decline, stationary phase
  3. Stationary, lag, log, decline phase
  4. Decline, lag, log phase, stationary
Ques. 6AIPMT 2002

In a population, unrestricted reproductive capacity is called as -

  1. Biotic potential
  2. Birth rate
  3. Carrying capacity
  4. Fertility
Ques. 7AIPMT 2002

Cause of mimicry is -

  1. offence
  2. concealment
  3. defence
  4. both (2) and (3)
Ques. 8AIPMT 2002

Which type of association is found in between entomophilous flower and pollinating agent ?

  1. Cooperation
  2. Co-evolution
  3. Mutualism
  4. Commensalism
Ques. 9AIPMT 2002

Two different species can not live for long duration in the same niche or habitat. This law is : -

  1. Dollo's rule
  2. Weismann's theory
  3. Allen's law
  4. Gause's hypothesis

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)