Biology/Biology MCQ Question - Ecosystem Sample Test,Sample questions

Question:
A dual organism composed of symbiotic association of an alga living within a fungus myceliium is

1.Mycorrhiza

2.Rhizobium

3.Lichen

4.Legume


Question:
A limiting reactant is one which

1.is taken in lesser quantity in grams as compared to other reactants

2.is taken in lesser quantity in volume as compared to other reactants

3.gives the maximum amount of the product which is required

4.gives the minimum amount of the product under consideration


Question:
A method of separation of components from its solution using Distribution law is

1.Sublimation

2.Crystallisation

3.Solvent extraction

4.Distillation


Question:
A real gas obeying vander waals equation will resemble the ideal gas if

1.Both a and b are small

2.Both a and b are large

3.a is small and b is large

4.a is large and b is small


Question:
A safe and more reliable method for drying the crystal is

1.Hot air currents

2.folds of filter paper

3.oven

4.Vacuum desiccator


Question:
Abiotic components include

1.Atmosphere

2.Hydrosphere

3.Lithosphere

4.All of these


Question:
Atomic radius can be determined by

1.X - ray diffraction

2.Spectrophotometer

3.Optical microscope

4.Electron microscope


Question:
Bohrs model is contradicted by

1.Plancks theory

2.Dual nature of matter

3.Heisenbergs uncertainty principle

4.All of these


Question:
Disease in living organisms caused by parasites is called

1.Parasitism

2.Infestation

3.Predation

4.Infection


Question:
Diverse and stable community at the end of succession is

1.Climax community

2.Pioneers community

3.Top community

4.Stable community


Question:
Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is

1.one / seventeen

2.sixteen / seventeen

3.one / three

4.two / three


Question:
Gross primary production is

1.Amount of energy fixed by small plants

2.Amount of energy fixed by large plants

3.Total amount of energy fixed by all plants

4.Primary production minus respiratory loss


Question:
Hydrosere is

1.Secondary succession starting in a pond

2.Primary succession starting in a pond

3.Primary succession starting on a dry soil

4.All of these


Question:
Isotopes differs in

1.arrangement of electrons in orbitals

2.position in the periodic table

3.properties depend upon mass

4.chemical properties


Question:
Legume plants are the hosts to

1.Rhizobium

2.Mycorrhiza

3.Lichen

4.Algae


Question:
Lichen and algae form

1.Climax community

2.Pioneers community

3.Initiator community

4.Seral community


Question:
Mosses are

1.Dermatocarpon

2.Permellia

3.Tortula

4.Both b and c


Question:
Nitrogen constitutes about ______ % of atmosphere

1.58%

2.25%

3.10%

4.78%


Question:
Only London dispersion forces are present among the

1.Molecules of water in liquid state

2.Atoms of helium in gaseous state at high temperature

3.Molecules of hydrogen chloride gas

4.Molecules of solid iodine


Question:
Over grazing leads to

1.Good pastured lands

2.Rocky areas

3.Totally barren lands

4.Salinity


Question:
Oxidation of ammonia or ammonium ions by bacteria in soil is called

1.Nitrification

2.Ammonification

3.Assimilation

4.Denitrification


Question:
Plant biomass is

1.Gross primary production

2.Net primary production

3.Gross primary production minus respiratory loss

4.Both b and c


Question:
Plants growing in xeric conditions are called

1.Spherophytes

2.Mesophytes

3.Xerophytes

4.Teridophytes


Question:
Plasma is used in

1.Fluorescent bulb

2.Neon signs

3.Lasers

4.All of these


Question:
Quantum number values for 3p orbitals are

1.n=3 l=2

2.n=3 l=0

3.n=3 l=1

4.n=3 l=3


Question:
Secondary succession starts from

1.A bar rock sand

2.Clear glacial pool

3.From remains of previous ecosystem

4.Fire


Question:
Sequence of changes in community and its non-living environment over a period of time is

1.Niche

2.Succession

3.Alterations

4.Neo-ecology


Question:
Sharks may have small fish attached to them called

1.Rumors

2.Romas

3.Romosis

4.Remoras


Question:
Symbiosis relationship in which only one organism is benefited is

1.Symbiosis

2.Commensalism

3.Mutualism

4.Unism


Question:
The major unit of ecology is

1.Population

2.Community

3.Ecosystem

4.Biome


Question:
The mass of one mole of electron is

1.1.008

2.0.55

3.0.184

4.1.637


Question:
The molecules of CO2 in dry ice form

1.Ionic crystal

2.Covalent crystal

3.Molecular crystal

4.Any type of crystal


Question:
The number of atoms in a molecule determines

1.macromolecule

2.macromolecule

3.molecularity

4.atomicity


Question:
The type of filtering media used for filtration depending upon

1.Nature of reactants

2.Nature of crucible

3.Nature of product

4.Nature of precipitate


Question:
The volume occupied by 1.4g CO at S.T.P is

1.22.4 dm3

2.2.24 dm3

3.1.12 cm3

4.1.12 dm3


Question:
Total solar energy trapped by the producers in an ecosystem is

1.95%

2.20%

3.78%

4.1%


Question:
Water absorber used in combustion analysis is

1.50% KOH

2.Lime water

3.CaCl2

4.Mg (CIO4)2


Question:
Water absorber used in combustion analysis is

1.Ecology

2.Synecology

3.Autecology

4.Niche


Question:
When fast neutron strike the nucleus of nitrogen the particles ejected are

1.? - particles

2.? - particles

3.? - rays

4.X - rays


Question:
Which element has same isotopes like palladium

1.Nickel

2.Calcium

3.Cadmium

4.Tin


Question:
Which of the following is not true for food web?

1.Formed from food chain

2.Complex than food chain

3.Stable than food chain

4.Starts with primary consumers


Question:
Which of the following is pseudo solid

1.CaF2

2.NaCl

3.Glass

4.Diamond


Question:
Which of the following set has all species isoelectronic

1.F - Cl - Br

2.Li+1 - Na+1 - K+1

3.F - Ne - Na+

4.H+ - H- - H


Question:
Which of the following step of nitrogen cycle is not useful for plants

1.Ammonification

2.Nitrification

3.Denitrification

4.Both a and c


Question:
Which one of the following is more tolerant to herbivore

1.Grasses

2.Trees

3.Herbs

4.None of these


Question:
Which specie has unpaired electrons in antibonding molecular orbitals

1.O2+2

2.N2-2

3.B2

4.O2-2


Question:
Which statement is true?

1.Producers are heterotrophic organisms

2.Consumers are autotrophic organisms

3.Fungi and bacteria are decomposers

4.Consumers release chemical elements as ions


Question:
Wood forests form the

1.Pioneers community

2.Climax community

3.Top community

4.Transient community


More MCQS

  1. MCQs Question and Answer -Biology Set I
  2. MCQs Question and Answer -Biology Set 2
  3. MCQs Question and Answer -Biology Set 3
  4. MCQs Question and Answer -Biology Set 4
  5. Biology MCQS[NEET-2021 to 2022]-Anatomy mcq for competitive exams
  6. Biology MCQS[NEET-2021 to 2022]-Ecology mcq for competitive exams
  7. Biology MCQS[NEET-2021 to 2022]-Biology MCQS 2021
  8. Biology MCQS[NEET-2021 to 2022]-Biology (living world)
  9. Biology MCQS[NEET-2021 to 2022]-Plant anatomy mcq for competitive exams
  10. Biology MCQS[NEET-2021 to 2022]-CELL STRUCTURES AND FUNCTION mcq for competitive exams
  11. Biology MCQS[NEET-2021 to 2022]-General biology mcq for competitive exams
  12. Biology MCQS[NEET-2021 to 2022]-Human physiology
  13. Biology MCQS[NEET-2021 to 2022]-Ecology-II
  14. Biology MCQS[NEET-2021 to 2022]-Reproduction in plants
  15. Biology MCQS[NEET-2021 to 2022]-Human reproduction
  16. Biology MCQS[NEET-2021 to 2022]-Animal kingdom
  17. Biology MCQS[NEET-2021 to 2022]-Animal kingdom-2
  18. Biology MCQS[NEET-2021 to 2022]-Microorganisms
  19. Biology MCQS[NEET-2021 to 2022]-Natural resources and conservation
  20. Biology MCQS section -1
  21. Biology MCQS section -2
  22. Biology MCQS section -3
  23. Biology MCQS section -4
  24. Biology Corona and Cancer Mcq question
  25. Biology MCQ Question - Bioenergetics
  26. Biology MCQ Question - Biological Molecules
  27. Biology MCQ Question - Kingdom Fungi
  28. Biology MCQ Question - The Variety of Life
  29. Biology MCQ Question - Chromosome and DNA
  30. Biology MCQ Question - Coordination and Control
  31. Biology MCQ Question - Transport
  32. Biology MCQ Question - Biotechnology
  33. Biology MCQ Question - Chemical Bonding
  34. Biology MCQ Question - Diagnostic Test
  35. Biology MCQ Question - Ecosystem
  36. Biology MCQ Question - Gases
  37. Biology MCQ Question - Periodic Classification
  38. Biology MCQ Question - Solutions
  39. Biology MCQ Question - Alkyl Halides
  40. Biology MCQ Question - Organic Chemistry
  41. Biology MCQ Question - Growth and development
  42. CELL Mcq Questions
  43. Biology – Biomolecules – Structure of Proteins MCQs
Search
R4R Team
R4Rin Top Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on R4R.in website is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!