PYQSide ExamsMy practice

Organisms and Populations · Question 82

AIPMT 2004MCQHard📈 Topic in 12% papers+4−1
1

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

Answer

(4) Black soil – Rich in calcium carbonate

Solution

Chernozems (black earths of the temperate grasslands) are the most fertile, humus-rich soils of the world — correctly matched.

Laterite is formed by intense leaching in hot, humid regions and is rich in hydrated oxides of iron and aluminium — correctly matched.

Black soil (regur) is characteristically rich in compounds of iron, magnesium and aluminium (clay-rich, formed from basalt); a high calcium carbonate content is the typical feature of chernozems.

∴ The pair 'Black soil – Rich in calcium carbonate' is taken as the mismatched pair.

Answer: (4)

AIPMT 2004

Keep practising — Organisms and Populations

2

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
AIPMT 2004
3

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
AIPMT 2003
4

Mycorrhiza is an example of :-

  1. Ectoparasitism
  2. Decomposers
  3. Endoparasitism
  4. Symbiotic relationship
AIPMT 2003
5

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
AIPMT 2002
6

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
AIPMT 2002
7

In a population, unrestricted reproductive capacity is called as -

  1. Biotic potential
  2. Birth rate
  3. Carrying capacity
  4. Fertility
AIPMT 2002
8

Cause of mimicry is -

  1. offence
  2. concealment
  3. defence
  4. both (2) and (3)
AIPMT 2002
9

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

  1. Cooperation
  2. Co-evolution
  3. Mutualism
  4. Commensalism
AIPMT 2002
10

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
AIPMT 2002

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)