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1 of 25
Q.1 Best soil for plant growth is:
- Grit
- Sandy
- Soily
- Clay
2 of 25
Q.2 Soil particle determine the character of
- Organisation
- Biomass
- Area capacity
- Soil plants
3 of 25
Q.3 Plant roots soil water is
- Cellular water
- Surface water
- Humidity water
- Gravitational water
4 of 25
Q.4 Exchange of water in submerged plant
- Stomata
- Normal surface
- Hydathode
- Lenticel
5 of 25
Q.5 Submerged Rooted Hydrophyte are:
- Uticularia
- Prapa
- Nymphea
- vallisnaria
6 of 25
Q.6 Water co-deficient contains:
- Large thin walled cells
- Large-vacuoles
- Membrane
- All of these
7 of 25
Q.7 Xerophyte Contains
- Deep roots
- Sunken stomata
- Thick cuticle
- All of these
8 of 25
Q.8 Small extremite animals of tropical region
- Allen’s law
- Bergmen’s law
- Dollo’s law
- Cope’s law
9 of 25
Q.9 Hibernation of some animals
- Regular
- Periodic
- Suddenly
- Temporary
10 of 25
Q.10 Physical and chemical properties of soil studied by
- Climatic factor
- Biotic factor
- Soil factor
- Topographic factor
11 of 25
Q.11 Identity the Hetero Organism
- Pistia
- Hydrilla
- Vallisnaria
- Casurina
12 of 25
Q.12 That animal who can bear one third loss of water of one third body weight is
- Necturus
- Camel
- Wall Lizzard
- Kyton
13 of 25
Q.13 Root hair absent in
- Hydrophyte
- Halophyte
- Mesophyte
- Heliophyte
14 of 25
Q.14 A water co-efficient Mesophyte is
- Cappais
- Agave
- Acacia
- Hemeris
15 of 25
Q.15 Gravitated carried soil is
- Alluvial
- Muddy
- Glacier
- Compound
16 of 25
Q.16 Kanha National Park is famous for
- For Birds
- For Tendua
- For Tiger
- For Crocodile
17 of 25
Q.17 During food chain the maximum energy is stored in
- Producers
- Decomposers
- Herbivoures
- Camivourse
18 of 25
Q.18 The average efficiency of energy transfer from herbivoure to carnivorce level is
- 5%
- 10%
- 20%
- 30%
19 of 25
Q.19 Ecological pyramids were first devised by
- Charles Eltom
- R. Hesse
- R.A. Lindemann
- Justus von Liebig
20 of 25
Q.20 Which of the following ecosystem has highest gross primary productivity
- Grassland
- Coral reefs
- Mangrooves
- Rainforests
21 of 25
Q.21 In the phosphorus cycle, weathring makes phosophate available first to
- Producers
- Decomposers
- Consumers
- None of these
22 of 25
Q.22 Which types of the following pyramid are never inverted?
- Pyramid of energy
- Pyramid of biomass
- Pyramid of number
- Pyramid of dry biomass
23 of 25
Q.23 Biosphere means
- Atmosphere
- Lithosphere and ionosphered
- Atmosphere, lithosphere and hydrosphere
- Hydrosphere lithosphere and ionsophere
24 of 25
Q.24 Best type of pyramid which is always true is:
- Pyramid or energy
- Pyramid of Biomass
- Pyramid of number
- Both (a) and (c)
25 of 25
Q.25 decomposers are
- Autotrophs
- Autohetrotrophs
- Organotrophs
- Heterotrophs
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Pharmacognosy Aptitude Test 
Biodiversity and Conservation : Class 12th Biology revision test | MCQs for NEET