CBSE Questions for Class 12 Medical Biology Biodiversity And Its Conservation Quiz 14 - MCQExams.com

A more suitable place among following, for germplasm collection would be
  • U.K.
  • France
  • Spain
  • Peru
Biggest national park of India is 
  • Corbett National Park, U.P.
  • Bandhavgarh National Park, M.P.
  • Periyar National Park, Kerala
  • Sunderbans, W.B.
Western Ghats come under "Hot Spot" category, because of
  • High elevation
  • Tropical climate
  • Evergreen forest
  • High endemism
Today ...........% of the total land surface of Earth, covering almost 665 million hectares has been set aside as nationally protected areas.
  • 10
  • 65
  • 49
  • 20
Number of plant species reported in India are
  • 45,000
  • 410
  • 1,250
  • 4,780
The diversity of an ecosystem of total geographical area is called 
  • Gamma diversity
  • Beta diversity
  • Omega diversity
  • Delta diversity
Genetic erosion is
  • Deforestation
  • Shifting cultivation
  • Adopting genetically uniform varieties
  • All of the above
'Biodiversity Act' of India was passed by the parliament in the year
  • 1996
  • 1992
  • 2002
  • 2000
Keystone species deserve protection because these
  • Are capable of surviving in harsh environmental conditions.
  • Indicate presence of certain minerals in the soil.
  • Have become rare due to overexploitation.
  • Play an important role in supporting other species.
Wild life (protection) Act, 1972 includes which of the following objectives?
  • Restriction and Prohibition on hunting of animals.
  • Setting up and managing sanctuaries and National Parks.
  • Protection of specified plants.
  • All of the above.
What is the zoological name of Indian peacock, the national birds?
  • Passer domesticus
  • Pavo cristatus
  • Columba livia
  • Psittacula eupatria
The species though insignificant in number; determine the existence of many other species in a given ecosystem. Such species is known as
  • Extinct species
  • Keystone species
  • Endemic species
  • Sacred species
Study the four statements (a-d) given below and select the two correct ones out of them.
(a) A lion eating a deer and a sparrow feeding on grain are ecologically similar in being consumers.
(b) Predator star fish, Pisaster helps in maintaining species diversity of some invertebrates.
(c) Predators ultimately lead to the extinction of prey species.
(d) Production of chemicals such as nicotine, strychnine by the plants are metabolic disorders.
The two correct statements are 
  • (a) and (b)
  • (b) and (c)
  • (c) and (d)
  • (a) and (d)
The interbreeding individuals of a species showing continuous distribution are
  • Endemic
  • Deme
  • Cline
  • Ecotones
Pick the correct match. 


  Column I    Column II
 A. Sardar sarovar dam     1. Tehri
 B. Chipko movement 2. MP
 C.  Tehri dam 3. Uttaranchal
 D. Indira sagar project  4. Gujrat  
  • A- 2, B- 4, C- 3, D- 1
  • A- 4, B- 3, C- 1, D- 2
  • A- 3, B- 4, C- 2, D- 1
  • A- 1, B- 4, C- 2, D- 3
Which species has rapid generation time?
  • Endogenic
  • Epigenic
  • Anecics
  • All of the above
The lion tailed monkeys Malaca malaca silenus are found only in the region of
  • Kaziranga and other parts of Assam
  • Eastern ghats and Madras
  • Western ghats including Travancore of Mysore
  • Himalayan mountains
"Human Genetic Diversity: Lewontin's Fallacy" is a 2003 paper by
  • Malthus
  • Edward
  • Lamarck
  • Darwin
Wildlife protection act was enacted in India in 
  • 1947
  • 1962
  • 1972
  • 1992
At which latitude, heat gain through insolation approximately equals heat loss through terrestrial radiation?
  • 42$$1/\mathring {2} $$ North and South
  • 22$$1/\mathring {2} $$ North and South
  • $$40^o $$ North and South
  • $$66^o $$ North and South
The method by which endangered plant species are conserved in a botanical garden or in some controlled circumstances is called
  • Afforestation
  • In-situ conservation
  • Ex-situ conservation
  • Deforestation
Best method to preserve the wild relatives of plants is
  • By growing them in natural habitats
  • Gene library
  • By storing seeds
  • Cryopreservation
The zoological name of Asiatic lion is
  • Panthera pardus
  • Panthera leo persica
  • Panthera leo spelea
  • Felis leo
One of the ex-situ conservation method for endangered species is
  • Wildlfe sanctuaries
  • Biosphere reserves
  • Cryopreservation
  • National Parks
Which one is hot spot of biodiversity?
  • Aravalli hills
  • Western ghats
  • lndogangetic plain
  • Eastern Ghats
Match Column-I with Column-II and select the correct option from the codes given below.
Column - IColumn - II
(a)Jim Corbett National Park(i)Karnataka
(b)Kanha National Park(ii)Madhya Pradesh
(c)Kaziranga Wildlife Sanctuary(iii)Tamil Nadu
(d)Bandipur Sanctuary(iv)Uttaranchal
(e)Mudumalai Sanctuary(v)Assam
  • (a)- (i), (b)- (iii), (c)- (iv), (d)- (ii), (e)- (v)
  • (a)- (v), (b)- (iv), (c)- (ii), (d)- (i), (e)- (iii)
  • (a)- (iv), (b)- (v), (c)- (i), (d)- (iii), (e)- (ii)
  • (a)- (iv), (b)- (ii), (c)- (v), (d)- (i), (e)- (iii)
Which of the following represent maximum number of species among global biodiversity?
  • Algae
  • Lichens
  • Fungi
  • Mosses and Ferns
Which one from the following is a correct pair?
  • Nagarjuna sagar Sanctuary- Andhra pardesh
  • Periyar Sanctuary- Karnataka
  • Gir National Park- Uttar Pradesh
  • Corbett Natiorlal park- Madhya pradesh
Which of the following has to be observed to protect wildlife?
  • Prevent deforestation
  • Place ban on poaching
  • Place ban on visiting sanctuaries
  • Both A and B
Which one of the following is considered a hot-spot of biodiversity in India?
  • Indo-Gangetic Plain
  • Eastern Ghats
  • Aravalli Ghats
  • Western Ghats
Which one from the following is correctly matched?
  • Rhinoceros- Kaziranga National Park
  • Great Indian bustard- Keoladeo National Park
  • Lion- Corbett National Park
  • Wild ass- Dudhwa National Park
Which of the following is wrongly matched?
  • Temperate zone - $$20^{\circ}\, -\, 40^{\circ}$$ latitude
  • Hypolimnion -Thermal stratifications in lakes
  • Ozone layer - Stratosphere
  • Profundal zone - Dark zone
Match the following
List 1
List 2
AJim Corbet National ParkIAssam
BKaziranga National ParkIIAndhra Pradesh
CMahavir Harina Vanasthali National ParkIIIRajasthana
DKeoladeo Ghana National ParkIVUttarakhand
  • A - II, B - I, C - IV, D - III
  • A - II, B - I, C - III, D - IV
  • A - IV, B - I, C - III, D - II
  • A - IV, B - I, C - II, D - III
One of the ex-situ conversation methods for endangered species is
  • Wildlife sanctuaries
  • Biosphere reserves
  • Cryopreservation
  • National parks
Identify the correct combinations.

National Park
Place
Animal Protected
(A)
Jim corbett
Rajasthan
Tigers
(B)
Gir
Gujarat
Lions
(C)
Kaziranga
Assam
One-horned rhinoceros
(D)
Periyar
Uttaranchal
Tigers and elephants
  • (B) and (C)
  • (C) and (D)
  • (A) and (D)
  • (A) and (B)
Species biodiversity is a combination of which two factors? 
  • The number of different species and the number of ecosystems in which they are found
  • The number of different species and the number of each of those different species in an area
  • The number of different genes in an organism and the number of ecosystems in which a species is found
  • The number of different species and the number of times a particular gene is found in the species
  • The number of different genes in an organism and the number of each species found in an ecosystem.
Which one of the following is the first in allopatric speciation?
  • Geographic isolation
  • Hybridization
  • Genetic drift
  • Polyploidy
Read the passage and answer the following questions:
The higher acidity of soil and water affects many living organisms adversely. As the pH of lake water falls, fish become ill and die. Table 1 shows the effects of pH on the size of adult fish.
pH of lake
Average length of fish (cm)
Average mass of fish (g)
7.5
30 cm
454 g
7.0
28 cm
450 g
6.5
29 cm
453 g
6.0
25 cm
401 g
5.5
20 cm
288 g
5.0
17 cm
127 g
4.5
All fish died
All fish died

Mycorrhizal fungi, which form a mutualistic association with many plant roots, are particularly sensitive to the effects of acid rain. These fungi facilitate the
absorption of water and nutrients by the plants; in turn, the plants provide sugars and amino acids without which the fungi could not survive.
The effect of acid rain on fish size is b
A continental population of insects has blue, red, green, and black variations. The color is controlled by the interaction of two genes, one with two alleles, the other with three alleles.
A piece of driftwood carrying two green insects and five red insects floats in the ocean for several days and washes up on a small island where the insect species did not previously live. The seven insects establish a new population on the island that increases in number significantly over several generations.
Which of the following statements correctly compares the island population with the original mainland population?
  • Red is dominantly inherited in the island population, while on the mainland green is dominant.
  • The island population has lower genetic diversity than the mainland population.
  • The island population is more likely to experience competition with other insect species than the mainland population.
  • The island population size is increasing, while the mainland population is decreasing.
According to the graph, what are the three biggest threats to the biodiversity of the Mediterranean Sea? 

535404_ccf1508e3153430ca5b381b34a697a49.png
  • Aquaculture, invasions, and climate change
  • Exploitation, eutrophication, and pollution
  • Exploitation, habitat degradation, and pollution
  • Exploitation, habitat degradation, and climate change
  • Maritime traffic, eutrophication, and invasions
The biodiversity is positively associated with

  • Diversity of ecosystems

  • Genetic variation within species

  • Species diversity within communities

  • B and C only
  • All of the above
Cheetah populations in Africa have been increasing for the past several decades from numbers in the hundreds to numbers in the thousands.
A study was conducted in which skin tissue samples were obtained from five wild cheetahs and grafted onto five other cheetahs. An immune response regarding non-self tissue rejection was absent in the cheetahs that received the skin grafts.
Recently, a small wild population of cheetahs has become infected with a new type of infectious cancer. Scientists are concerned about the extinction of the entire species because
  • Wild cheetah populations have lost their genetic diversity and are now equally susceptible to diseases.
  • The immune systems of the wild cheetahs have become suppressed by stressors in their environments.
  • Wild cheetah populations are still so small that transmission of infectious diseases will occur rapidly.
  • Skin cancer tends to metastasize faster and be more malignant than many other forms of cancer.
Which one of the followings in an in situ method of biodiversity conservation?
  • National park
  • Botanical garden
  • Zoological garden
  • Scientific laboratory
An area is declared as Hot Spot when 
  • It has 1500 or more endemic species and 75% of its original habitat is lost
  • It has 1500 or more vertebrate species and 75% of its original habitat is lost
  • It has more than 2000 species of plants
  • Most of the species inhabiting the area is facing the risk of extinction
Ecological amplitude of a species is related to
  • Zones of stress
  • Zone of optimum tolerance range of a factor
  • Area with zones of optimum tolerance ranges of all determining factors
  • None of the above
The objective of Ramsar Convention was 
  • Forest conservation
  • Wildlife conservation
  • Wetland conservation
  • Biodiversity conservation
Which of the following is associated with evil quartet?
  • Three horsemen
  • Hunters
  • Four horsemen
  • None of the above
Discovery of new species has recently picked up due to project _________.
  • Species 2000
  • Global Biodiversity Information Facility
  • Agenda 21
  • Both A and B
An easily disturbed ecosystem which can recover after some time, after the stoppage of damaging factor is of
  • Low stability and high resilience
  • High stability and high resilience
  • Low stability and low resilience
  • High stability and low resilience
Which is used to select genes from genomic library?
  • Cloning vectors
  • DNA probes
  • Gene targets
  • Restriction enzymes
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