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Given the QUESTION, identify the ANSWER
1. Which of the following is dispersed by wind? Orange
Love Grass
Spear Grass
Squirting Cucumber
Calotropis
Resposta: CalotropisCalotropis is dispersed by wind (anemochory). In calotropis, a tuft of hair, called plume or coma develops as a crown of seeds. 2. Which of the following is dispersed by wind? Oxalis
Clematis Water Lily
Castor
Balsam
Resposta: ClematisClemantis is dispersed by wind (anemochory). In clemantis, the style becomes feathery. 3. Which of the following is not dispersed by wind? Orchids
Cinchona
Oroxylon
Drumstick
Coconut
Resposta: CoconutCoconut is dispersed by water (hydrochory). In coconut, a fibrous mesocarp is observed which encloses air, makes it buoyant and enables it to float.
4. The male flower of the hazel plant is known as the _______. corymb
catkin capitulum
Resposta: catkin 5. During _______, the pollen grains are transferred from the anthers of one flower to the stigma of another flower. self-pollination
cross-pollination
Resposta: cross-pollinationDuring the process of cross-pollination (allogamy) in a flowering plant, the pollen grains are transferred from the anthers of one flower to the stigma of another flower. 6. Which of the following is dispersed by animals? Acacia
Hogweed Caesalpenia
Maple
Yam
Resposta: HogweedHogweed is dispersed by animals (zoochory). Sticky, glandular hairs are observed in hogweed. 7. Which of the following is not dispersed by animals? Martynia
Boerhaavia
Tribulus
Guava
Lotus
Resposta: LotusLotus is dispersed by water (hydrochory). In lotus, a spongy thalamus is observed with fruitlets embedded in it. 8. In a bean, water is taken in through the _______. integument
cotyledon
micropyle
Resposta: micropyleA bean takes in water through a small opening called the micropyle. 9. Insects visit flowers in the search of _______. nectar fragrance
water
Resposta: nectarInsects visit flowers in the search of sweet nectar. 10. What is a seed called before it undergoes fertilization? Ovary
Embryo
Ovule
Resposta: OvuleA seed is called an ovule before it undergoes fertilization. 11. Which of the following is not dispersed by animals? Xanthium
Urena
Poppy Mimosa
Plumbago
Resposta: PoppyPoppy is dispersed by wind (anemochory). 12. The fleshy base of a flower forming the top of the flower-stalk is called the _______. receptacle pedicel
peduncle
Resposta: receptacleThe fleshy base of a flower to which the different floral parts are attached is called the receptacle. It forms the top of the flower-stalk. It is also known as the thalamus. 13. During _______, the pollen grains are transferred from the anthers of a flower to the stigma of the same flower. cross-pollination
self-pollination
Resposta: self-pollinationDuring the process of self-pollination (autogamy) in a flowering plant, the pollen grains are transferred from the anthers of a flower to the stigma of the same flower. 14. Which of the following plants has a rhizome? Crocus
Daffodil
Tulip
Solomon's Seal Potato
Resposta: Solomon's SealA rhizome is observed in Solomon's Seal. 15. Scientists conduct germination tests to study the average number of seeds in every hundred that are likely to germinate. True False
Resposta: TrueGermination tests are conducted by scientists to study the average number of seeds in every hundred that are likely to germinate. 16. The conditions required for seeds to germinate are oxygen, water and warmth. True False
Resposta: TrueThe conditions required for seeds to germinate are oxygen, warmth and water (moisture). 17. The hard wood in the center of a tree trunk is referred to as 'heartwood'. True False
Resposta: True'Heartwood' is the hard wood in the center of a tree trunk. 18. In a flowering plant, fruits begin to form after the processes of pollination and fertilization. True False
Resposta: TrueAfter the processes of pollination and fertilization in a flowering plant, fruits begin to form. 19. Even though a seed has been kept for several years, it will eventually germinate. True
False
Resposta: FalseA seed which has been kept for several years will not germinate. 20. The growth of a pollen tube enables pollination to take place. True
False
Resposta: FalseThe growth of a pollen tube enables the process of fertilization to take place. The pollen tube grows from a pollen grain. It moves down the style to fuse with an ovule.
Resolva o Quiz : School Science Quiz : Flowering Plants - II
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