NEET Biology - Ecology and Environment
Exam Duration: 30 Mins Total Questions : 30
Lichens is a symbiotic association between
- (a)
Bryophyte and fungi
- (b)
Algae and fungi
- (c)
Angiosperm and fungi
- (d)
Pteridophytes and algae
Pneumatophores are common in halophytes of saline swampy soil of sea shores for
- (a)
Respiration.
- (b)
Guttation
- (c)
Both 1 and 2
- (d)
None of these
Ratio between mortality and natality is
- (a)
Population ratio
- (b)
Census proportion
- (c)
Vital index
- (d)
Density coefficient
Most animals are tree dwellers in a
- (a)
Tropical rain forest
- (b)
Coniferous forest
- (c)
Thorn woodland
- (d)
Temperate deciduous forest
The totality of pattern of relations between organisms and their environment best defines
- (a)
Autecology
- (b)
Synecology.
- (c)
Ecology
- (d)
Palaeoecology
In an ideal pyramid of energy, primary producers convert only -- % of the energy in the sunlight available to them into NPP.
- (a)
1 %
- (b)
10 %
- (c)
50 %
- (d)
70 %
Which one is the natural reservoir of phosphorus?
- (a)
Volcanoes.
- (b)
Fossil fuel.
- (c)
Photosynthesis.
- (d)
Rock.
Live collections of wild and domestic species in a protected place is the example for
- (a)
In situ conservation
- (b)
Ex situ conservation.
- (c)
off site collections
- (d)
Both (2) &(3)
The UN conference of parties on climate change in the year 2011 was held in
- (a)
Qatar.
- (b)
Poland.
- (c)
South Africa
- (d)
Peru.
Which of the following is alien species?
- (a)
Parthenium
- (b)
Lantana
- (c)
Eichhornia
- (d)
All of these
Which of the following is the correct matching pair of a sanctuary and its main protected wild animal?
- (a)
Gir - Lion
- (b)
Sariska - Tiger
- (c)
Sunderban - Rhino
- (d)
Kaziranga - Musk deer
Species restricted to a given area are called
- (a)
sibling
- (b)
endemic
- (c)
sympatric
- (d)
allopatric
Which of the following is not true for a species?
- (a)
Members of a species can interbreed
- (b)
Variations occur among members of a species
- (c)
Each species is reproductively isolated from every other species
- (d)
Gene flow does not occur between the populations of a species
Diffuse porous woods are characteristic of plants growing in
- (a)
temperate climate
- (b)
tropics
- (c)
alpine region
- (d)
cold winter regions
Choose the correct match. Bladderwort, Sundew, Venus fly trap
- (a)
Nepenthes, Dionea, Drosera
- (b)
Nepenthes, Utricularia, Vanda
- (c)
Utricularia, Drosera, Dionea
- (d)
Dionea, Trapa, Vanda
_______rule states that mammals from colder climates generally have shorter ears and limbs to minimise heat loss.
- (a)
Allen's
- (b)
Berger's
- (c)
Borge's
- (d)
Powell's
India has a greater ecosystem diversity than a Scandinavian country like Norway. What kind of diversity does it represent?
- (a)
Species diversity
- (b)
Ecological diversity
- (c)
Genetic diversity
- (d)
None of these
The given pie diagram represents the proportionate number of species of major taxa of vertebrates. Identify the groups A and B.
- (a)
A - Reptiles, B - Birds
- (b)
A - Fish, B - Birds
- (c)
A - Birds, B - Fish
- (d)
A - Birds, B - Reptiles
Species diversity ______ as we move away from the ________ towards _____
- (a)
decreases, equator, poles
- (b)
increases, equator, poles
- (c)
decreases, poles, equator
- (d)
none of these
Study the given biogeochemical cycle and identify the steps (i) and (ii).
- (a)
(i) (ii) Ammonification Denitrification - (b)
(i) (ii) Denitrification Ammonification - (c)
(i) (ii) Nitrification Ammonification - (d)
(i) (ii) Ammonification Nitrification
Match column I with column II and select the correct option from the given codes
Column I | Column II |
---|---|
A. Rhinoceros | (i) High endemism |
B. In situ conservation | (ii) Off site conservation |
C. Ex situ conservation | (iii) On site conservation |
D. Hotspots | (iv) Kaziranga |
- (a)
A-(iv), B-(iii), C-(ii), D-(i)
- (b)
A-(iv), B-(i), C-(ii), D-(iii)
- (c)
A-(iv), B-(ii), C-(iii), D-(i)
- (d)
A-(iv), B-(i), C-(iii), D-(ii)
Arrange the following ecosystems in increasing order of their mean NPP (tons/ha/year).
A. Tropical deciduous forest
B. Temperate coniferous forest
C. Tropical rainforest
D. Temperate deciduous forest
- (a)
B < A < D < C
- (b)
D < B < A < C
- (c)
A < C < D < B
- (d)
B < D < A < C
The community which starts succession at a place is termed
- (a)
Climax community
- (b)
Serial community
- (c)
Pioneer community
- (d)
Primary community
Which of the following is the main factor of water pollution -
- (a)
Smoke
- (b)
Industrial waste
- (c)
Detergent
- (d)
Ammonia
Which of the following cannot be used by prey for defence against predator
- (a)
Cardiac glycosides
- (b)
Strychnine
- (c)
Nectar
- (d)
Quinine
Threats to biodiversity comes from
- (a)
Habitat loss
- (b)
Over exploitation
- (c)
Intensive agriculture
- (d)
All of these
Chipko movement was launched for the protection of:-
- (a)
Wet lands
- (b)
Grasslands
- (c)
Forests
- (d)
Livestock
The domestic sewage in large cities:
- (a)
When treated in STPs does not really require the aeration step as the sewage contains adequate oxygen
- (b)
has very high amounts of suspended solids and dissolved salts.
- (c)
hasd a high BOD as it contains both aerobic and anaerobic bacteria
- (d)
is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment plants (STPs)
Global warming can be controlled by:
- (a)
Increasing deforestation, reducing efficiency of energy usage
- (b)
reducing deforestation cutting down use of fossil fuel
- (c)
Reducing reforestation, incresing the use of fossil fuel
- (d)
Increasing deforestation slowing down the growth human population
In which of the following both pairs have correct combination:-
- (a)
In situ conservation : Cryopreservation Ex situ conservation : Wildlife Sanctuary
- (b)
In situ coservation : Seed Bank Ex situ conservation : National Park
- (c)
In situ coservation : Tissue culture Ex situ conservation : Sacred groves
- (d)
In situ conservation : Natyional Park Ex situ conservation : Botanical Garden