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A water co-efficient Mesophyte is
General Science Biology Zoology Class 12th NEET UG NEET UG Preparation
Q. 14 of Quiz-1471 (Que-ID : 3482)
A water co-efficient Mesophyte is
- Cappais
- Agave
- Acacia
- Hemeris
Ans → (b)Agave
Explanation → A water co-efficient Mesophyte is Agave.
This question is taken from this post → Ecosystem : Biology (Class 12th) Revision test | MCQs for NEET - attemp/practice
More MCQs in - Ecosystem : Biology (Class 12th) Revision test | MCQs for NEET
Q. 2 of Quiz-1471 (Que-ID : 3470)
Soil particle determine the character of
- Organisation
- Biomass
- Area capacity
- Soil plants
Q. 3 of Quiz-1471 (Que-ID : 3471)
Plant roots soil water is
- Cellular water
- Surface water
- Humidity water
- Gravitational water
Q. 4 of Quiz-1471 (Que-ID : 3472)
Exchange of water in submerged plant
- Stomata
- Normal surface
- Hydathode
- Lenticel
Q. 5 of Quiz-1471 (Que-ID : 3473)
Submerged Rooted Hydrophyte are:
- Uticularia
- Prapa
- Nymphea
- vallisnaria
Q. 6 of Quiz-1471 (Que-ID : 3474)
Water co-deficient contains:
- Large thin walled cells
- Large-vacuoles
- Membrane
- All of these
Q. 7 of Quiz-1471 (Que-ID : 3475)
Xerophyte Contains
- Deep roots
- Sunken stomata
- Thick cuticle
- All of these
Q. 8 of Quiz-1471 (Que-ID : 3476)
Small extremite animals of tropical region
- Allen’s law
- Bergmen’s law
- Dollo’s law
- Cope’s law
Q. 10 of Quiz-1471 (Que-ID : 3478)
Physical and chemical properties of soil studied by
- Climatic factor
- Biotic factor
- Soil factor
- Topographic factor
Q. 11 of Quiz-1471 (Que-ID : 3479)
Identity the Hetero Organism
- Pistia
- Hydrilla
- Vallisnaria
- Casurina
Q. 12 of Quiz-1471 (Que-ID : 3480)
That animal who can bear one third loss of water of one third body weight is
- Necturus
- Camel
- Wall Lizzard
- Kyton
Q. 16 of Quiz-1471 (Que-ID : 3484)
Kanha National Park is famous for
- For Birds
- For Tendua
- For Tiger
- For Crocodile
Q. 17 of Quiz-1471 (Que-ID : 3485)
During food chain the maximum energy is stored in
- Producers
- Decomposers
- Herbivoures
- Camivourse
Q. 18 of Quiz-1471 (Que-ID : 3486)
The average efficiency of energy transfer from herbivoure to carnivorce level is
- 5%
- 10%
- 20%
- 30%
Q. 19 of Quiz-1471 (Que-ID : 3487)
Ecological pyramids were first devised by
- Charles Eltom
- R. Hesse
- R.A. Lindemann
- Justus von Liebig
Q. 20 of Quiz-1471 (Que-ID : 3488)
Which of the following ecosystem has highest gross primary productivity
- Grassland
- Coral reefs
- Mangrooves
- Rainforests
Q. 21 of Quiz-1471 (Que-ID : 3489)
In the phosphorus cycle, weathring makes phosophate available first to
- Producers
- Decomposers
- Consumers
- None of these
Q. 22 of Quiz-1471 (Que-ID : 3490)
Which types of the following pyramid are never inverted?
- Pyramid of energy
- Pyramid of biomass
- Pyramid of number
- Pyramid of dry biomass
Q. 23 of Quiz-1471 (Que-ID : 3491)
Biosphere means
- Atmosphere
- Lithosphere and ionosphered
- Atmosphere, lithosphere and hydrosphere
- Hydrosphere lithosphere and ionsophere
Q. 24 of Quiz-1471 (Que-ID : 3492)
Best type of pyramid which is always true is:
- Pyramid or energy
- Pyramid of Biomass
- Pyramid of number
- Both (a) and (c)
Q. 25 of Quiz-1471 (Que-ID : 3493)
decomposers are
- Autotrophs
- Autohetrotrophs
- Organotrophs
- Heterotrophs
More MCQs In - General Science Biology Zoology Class 12th NEET UG NEET UG Preparation
Q. 19 of Quiz- (Que-ID : 3237)
Which of the following is a correct pair?
- Cuscuta – parasite
- Dischidia – insectivorous
- Opuntia – predator
- Capsella – hydrophyte
Q. 4 of Quiz- (Que-ID : 2922)
In a monohybrid cross between two heterozygous individuals, percentage of pure homozygous individuals obtained in F1 generation will be
- 25%
- 50%
- 75%
- 100%
Q. 5 of Quiz- (Que-ID : 3323)
Which of the following is the bacterial disease in humans ?
- Dysentery
- Malaria
- Plague
- Both (a) & (c)
Q. 8 of Quiz- (Que-ID : 2951)
In some viruses, DNA is synthesised by using RNA as template. Such a DNA is called
- A – DNA
- B – DNA
- cDNA
- rDNA
Q. 21 of Quiz- (Que-ID : 2889)
Which of the following is correct regarding HIV, hepatitis B, gonorrhoea, trichomoniasis ?
- Trichomoniasis is an STD whereas others are not.
- Gonorrhoea is a viral disease whereas others are bacterial
- HIV is a pathogen whereas others are diseases
- Hepatitis B is eradicated completely whereas others are not
Q. 24 of Quiz- (Que-ID : 3042)
The major site for production of gibberellin is
- Embryos
- Roots
- Young leaves
- All of these
Q. 12 of Quiz- (Que-ID : 3430)
Which one of the following is a step of PCR?
- Denaturation
- Annealing
- Extension
- All of these
Q. 15 of Quiz- (Que-ID : 2883)
Causes for increased population growth in india is/are
- increase in birth rate
- decrease in death rate
- lack of education
- all of these.
Q. 28 of Quiz- (Que-ID : 599)
Who is regarded as the father of modern chemistry ?
- Rutherford
- Einstein
- Lavoisier
- C. V. Raman
Q. 11 of Quiz- (Que-ID : 3504)
Bandipurin Karnataka is the site of project
- Elephant
- Hangul
- Tiger
- Peacock
Q. 25 of Quiz- (Que-ID : 3193)
Which one of the following contains the largest quantity of extra-cellular material
- Striated muscle
- Areolar tissue
- Stratified epithelium
- Myelinated nerve fibres
Q. 5 of Quiz- (Que-ID : 2973)
Which requires min water for removal from body
- Ammonia
- Urea
- Uric acid
- None of the above
Q. 15 of Quiz- (Que-ID : 2733)
Whittakers definition of classification does not include
- Algae
- Protista
- Plantae
- mychota
Q. 15 of Quiz- (Que-ID : 3258)
Bed Bugs contribute to the spread of
- Typhoid
- Yellow fever
- Typhus
- Trench fever
Q. 18 of Quiz- (Que-ID : 3161)
The minimum amount of energy required to initiate a chemical reaction is called
- enzymatic energy
- activation energy
- substrate energy
- initiation energy
Q. 10 of Quiz- (Que-ID : 2778)
Scientific name of plants are given by
- ICBN
- International code for biological plants
- International code for botanical nomenclature
- ICZN
Q. 18 of Quiz- (Que-ID : 3411)
Restriction endonuclease cuts
- One stand of DNA at specific site
- Both strands of DNA
- Both strands of DNA at any site
- Single strand of RNA
Q. 8 of Quiz- (Que-ID : 3001)
Arrange the following events of meiosis in the correct sequence: I. Terminalization II. Crossing over III. Synapsis IV. Disjunction of genomes The correct sequences
- II, I, IV, III
- III, II, I, IV
- IV, III, II, I
- I, IV, III, II
Q. 24 of Quiz- (Que-ID : 2817)
Which among is faster impulse transmission
- Chemical
- Both
- Electrical
- None of these
Q. 6 of Quiz- (Que-ID : 2649)
Inspiration occurs if the pressure within the lungs is
- More than atm pressure
- Less tha atm pressure
- Equal to atm pressure
- None of the above
Q. 2 of Quiz- (Que-ID : 2795)
During resting state, fluid outside axon contains
- low concentration of K+
- low concentration of Na+
- low concentration of Cl–
- high concentration of Cl–
Q. 4 of Quiz- (Que-ID : 3072)
The law of limiting factor was given by
- Calvin
- Blackman
- Priestley
- None of these
Q. 1 of Quiz- (Que-ID : 2744)
Which hormones is a stress hormone
- Norepinephrine
- Androgen
- Cortisol
- FSH
Q. 10 of Quiz- (Que-ID : 3478)
Physical and chemical properties of soil studied by
- Climatic factor
- Biotic factor
- Soil factor
- Topographic factor
Q. 8 of Quiz- (Que-ID : 3401)
Which of the following steps are catalysed by Taq polymerase in a PCR reaction?
- Denaturation of template DNA
- Annealing of primers to template DNA
- Extension of primer end on the template DNA
- All of the above
Q. 2 of Quiz- (Que-ID : 2645)
Which among the following have well developed respiratory system
- Cockroaches
- Earthworms
- Sponges
- Mammals
Directions : (Q. 31 - Q. 45 Biology Part)
Q. 31 of Quiz- (Que-ID : 602)which one of the following plant tissues has dead cells ?
- Epidermis
- Parenchyma
- Collenchyma
- Sclerenchyma
Q. 2 of Quiz- (Que-ID : 3295)
The phenomenon ‘ontogeny repeats phylogeny’ is explained by
- recapitualtion theory
- Inheritcance theory
- mutation theory
- natural selection theory.
Q. 23 of Quiz- (Que-ID : 3041)
Formation of seedless fruit without act of fertilisation
- Parthenocarpy
- pseudocarpy
- Apomixis
- Parthenogenesis
Q. 20 of Quiz- (Que-ID : 3513)
Genetic biodiversity in agricultural crops in threatened by
- introduction of high yielding varieties
- intensine use of fertilizers
- extensive intercropping
- intensive use of biopesticides
Q. 25 of Quiz- (Que-ID : 3093)
Which one of the following statements about cytochrome P-450 is wrong?
- It is a colored cell
- It is an enzyme involved in oxidation reaction
- It has an important role in metabolism
- It contains iron
Q. 15 of Quiz- (Que-ID : 2733)
Whittakers definition of classification does not include
- Algae
- Protista
- Plantae
- mychota
Q. 18 of Quiz- (Que-ID : 3036)
Mobilisation of stored food in germinating seeds is triggered by
- auxins
- cytokinins
- gibberellins
- ethylene
Q. 14 of Quiz- (Que-ID : 3282)
In gymnosperms, the development of pollen grains occurs in
- Strobili
- Microsporangia
- Megasporangia
- Macrosporangia
Q. 6 of Quiz- (Que-ID : 2674)
Plasma without clotting factor is known as
- sirum
- Serum
- Both a and b
- None of the above
Q. 5 of Quiz- (Que-ID : 2618)
Which kind of gland is pancreas
- Exocrine
- Endocrine
- Compound gland
- None of the above
Q. 8 of Quiz- (Que-ID : 2901)
Which part of the sperm plays an important role in penetrating the egg membrane ?
- Allosome
- Tail
- Autosome
- Acrosome
Q. 12 of Quiz- (Que-ID : 3130)
Water is lost in a liquid state in some plants through hydathodes. These hydathodes
- do not show any specificity in opening and closing
- remain closed during day
- remain closed at night
- remain always open
Q. 4 of Quiz- (Que-ID : 2822)
Meiosis does not occur in
- asexually reproducing diploid individuals
- sexually reproducing haploid individuals
- sexually reproducing diploid individuals
- all of these.
Q. 9 of Quiz- (Que-ID : 3027)
Which one of the followings is a gaseous plant hormone?
- Ethylene
- Gibberellin
- IAA
- Abscisic acid
Q. 19 of Quiz- (Que-ID : 3187)
Which of the following helps in locomotion of earthworms?
- Clitellum
- Setae
- Intersegmental grooves
- Nephridiophores
Q. 22 of Quiz- (Que-ID : 3390)
Process of biogas production is
- aerobic process
- anaerobic process
- active process
- passive process
Q. 20 of Quiz- (Que-ID : 3013)
Synaptonemal complex dissolves in _____ stage.
- Zygotene
- Pachytene
- Diakinesis
- Diplotene
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