CSIR NET JRF: Zoology MCQs (Practice-Test 39 of 112)
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Consider the following statements:
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Under Wildlife (Protection) Act, 1972, only Central Government is empowered to declare any area in India as a Sanctuary or a National Park.
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Protection of wild animals is included in the Concurrent List in the
Constitution of India.
Which of the statements given above is/are correct?
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1 only
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2 only
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Both 1 and 2
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Neither 1 nor 2
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Which of the following are homologous organs?
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Wings of birds, flippers of whales and forearms of man
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Wings of butterfly, pterygium of flying squirrel and fins of flying fishes
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Tails of snake, scorpion and walllizard
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Lungs of rabbit, trachea of cockroach and book lungs of scorpion
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Consider the following statements: The conditions essential for the operation of the Hardy-Weinberg Law are that the
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Mating should be at random
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Mutation rate should be very high
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Individuals should be of unequal viability and fertility
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Population size should be very large
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Migrations should not occur
Which of the statements given above are correct?
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1, 2 and 3
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1, 3 and 5
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2, 3 and 5
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1, 4 and 5
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Early terrestrial vertebrates appeared in
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Cambrian period
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Devonian period
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Pre-Cambrian period
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Ordovician period
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Match List I (Islands) with List II (Geographical Realms) and select the correct answer:
List-I List-II -
Japan
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Greenland
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Madagascar
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Tasmania
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Australian
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Ethiopian
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Nearctic
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Palaearctic
- A
- B
- C
- D
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- 1
- 2
- 3
- 4
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- 4
- 2
- 3
- 1
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- 1
- 3
- 2
- 4
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- 4
- 3
- 2
- 1
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In contrast to continental islands, oceanic islands were originally devoid of
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Birds and amphibians
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Bats and terrestrial mammals
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Terrestrial mammals and amphibians
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Birds and terrestrial mammals
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Which one of the following groups of fossil animals are related to king crab of today and which is one of the most abundant of arthropod fossils?
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Cephalopods
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Brahciopods
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Bryozoans
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Trilobites
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Photochemical smog is a resultant of the reaction between
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NO2, O3 and Peroxyacetyl nitrate in the presence of sunlight
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CO, O2 and Peroxyacetyl nitrate in the presence of sunlight
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CO, CO2 and NO2 at low temperature
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High concentration of NO2, O3 and CO in the evening
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In the commercial seed production of Indian major carps, the product used for induced breeding is
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Ovatype
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Ovateem
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Ovapride
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Ovaprim
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In the lac insect the bulk of the lac is contributed by
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Adult males
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Female and males
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Females
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Adult males and nymphs
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Echinocnemus oryzae causes damage to the rice crop by feeding on
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Main roots
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Rootlets
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Stem
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Leaves
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Consider the following statements:
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The ecological pyramid of numbers is always upright
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The ecological pyramid of biomass can be upright or inverted
Which of the statements given above is/are correct?
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1 only
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2 only
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Both 1 and 2
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Neither 1 nor 2
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Which one of the following is the correct Sequence of ecosystems in the order of decreasing productivity?
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Oceans, lakes, grasslands, mangroves
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Mangroves, oceans, grasslands, lakes
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Mangroves, grasslands, lakes, oceans
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Oceans, mangroves, lakes, grasslands
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Consider the following types of animals:
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Crustaceans
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Chaetognaths
Which of the statements given above is/are correct?
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1 only
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2 only
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Both 1 and 2
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Neither 1 nor 2
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In the logistic model of population growth, unlike in the exponential growth model
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There is a limit to the maximum densities attained
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Growth rates decrease with increasing population density
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Death rates are lower than birth rates
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Growth rate is unaffected by population size
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