Biology ยท Environmental Studies
Biology of Insects and Pollination
861 Questions
Insect biology and pollination focus on ecological relationships, crop science, and practical applications like apiculture. These topics regularly appear in general science sections of competitive exams. Review core concepts to build accuracy for test day.
Apiculture and honeyTypes of pollinationInsect binomial nomenclatureCrop damaging pestsFriend of farmers organism
Biology of Insects and Pollination Questions
C
Correct answer
Explanation
Bees have two pairs of wings (a total of four wings) that are hooked together during flight to act as a single surface. This is a characteristic feature of the insect order Hymenoptera.
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No
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Some species
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Yes
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Schmetterling!!!
C
Correct answer
Explanation
Butterflies belong to the class Insecta and the order Lepidoptera. They have the defining characteristics of insects, including a three-part body, six jointed legs, and antennae.
A
Correct answer
Explanation
Subterranean means located or operating under the earth's surface. A terrarium is a glass container for plants.
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(a) Pollination by water in Vallisneria
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(b) Insect pollination
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Both
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None
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Foul odours from flowers attract flies & beetles
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Animals are attracted to flowers by colour and fragrance
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Nectar and pollen grains are floral rewards to animals
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All
D
Correct answer
Explanation
Flowers attract pollinators through various signals like color, fragrance, and foul odors, and offer rewards like nectar and pollen to ensure successful pollination.
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Bees are dominant biotic pollinating agents
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Primates (limur), arboreal (tree dwelling)rodents and gecko & garden lizard
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Insect pollinated flowers are large,colourful,fragrant & rich in nectar
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All
D
Correct answer
Explanation
Biotic pollination involves a wide range of animals, including insects like bees, as well as vertebrates like rodents, geckos, and birds, which are attracted to specific floral traits.
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Wind pollinated flowers
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Water pollinated flowers
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Both
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None
C
Correct answer
Explanation
Flowers pollinated by abiotic agents like wind and water do not need to attract pollinators with color or nectar, as these are traits specifically evolved for biotic (animal) pollination.
B
Correct answer
Explanation
In water-pollinated species, pollen grains are often coated with a mucilaginous substance to prevent them from becoming waterlogged or damaged during transport through the water.
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Waterhyacinth & waterlily emerge above water & pollinated by insects & wind
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Vallisneria pollinated at surface of water through water
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Sea grasses submerged in water and pollinated inside water
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All
D
Correct answer
Explanation
Different aquatic plants have evolved different strategies: some like water hyacinth emerge above water and use insects/wind, while others like Vallisneria and sea grasses use water for pollination.
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Example of wind pollination is Corn - cab
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Tassels are stigma & style which wave in wind to trap pollen grains
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Wind pollination is quiye common in grasses
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All
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Chasmogamous flowers
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Cleistogamous flowers
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Both
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None
B
Correct answer
Explanation
Cleistogamous flowers do not open, meaning pollination occurs within the closed flower. Therefore, they do not require external pollinators.
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Migration
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Mimicry
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Camouflage
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Hibernation
B
Correct answer
Explanation
Mimicry occurs when one species evolves to resemble another species to gain a survival advantage, such as avoiding predators.
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plants and animals
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air and water
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water
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air
B
Correct answer
Explanation
Burrowing animals like earthworms and ants create tunnels in the soil. These tunnels improve soil aeration and water infiltration, which are essential for plant root health.
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Pollination
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Purifying air
A
Correct answer
Explanation
Insects and birds facilitate the transfer of pollen between flowers, which is the process of pollination necessary for plant reproduction.
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pollination
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fertilization
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photosynthesis
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respiration
A
Correct answer
Explanation
Insects, bees, and butterflies are primary pollinators that transfer pollen from the male part of a flower to the female part, enabling reproduction.