STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
ANATOMY OF FLOWERING PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are tiny.
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They are brightly colored.
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They produce nectar to attract pollinators.
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They pollinate more efficiently than wind-pollinated plants.
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Detailed explanation-1: -These flowers are generally larger in size. Pollination by animals is more efficient than wild pollination as many pollen get wasted during wind pollination. Thus, the correct answer is option (A).
Detailed explanation-2: -Over millions of years, flowers have developed scents, colors, markings and shapes to attract certain pollinators, and certain pollinators have developed characteristics such as long tongues or beaks that enable them to reach the nectar in differently shaped flowers.
Detailed explanation-3: -Effective pollination involves the transfer of pollen from the anthers to a stigma of the same species and subsequent germination and growth of the pollen tube to the micropyle of the ovule. Pollen transfer is effected by wind, water, and animals, primarily insects and birds.
Detailed explanation-4: -Angiosperms have several adaptations that make them successful on land including smaller, lighter pollen grains that can be easily distributed by the wind. They also have stamen to produce pollen and small female reproductive structures that allow them to quickly produce lots of seeds.
Detailed explanation-5: -Flowers have bright colors, strong scents, and sweet nectar to attract animal pollinators. In exchange for pollination, flowers gave the pollinators nectar. Some of the most recent angiosperms to evolve are grasses, such as domestic grasses. They have many large, edible seeds that contain a lot of food.