Even in absence of pollinating agents
Web(b) non-biotech agents for pollination (c) air for pollination (d) animal for pollination. Answer/Explanation. 48. (a) Majority of the plants use biotic agents for pollination as it reduces the chances of wastage of pollen. … WebNov 13, 2024 · Even in absence of pollinating agents seed-setting is assured in (a) Commelina (b) Zostera (c) Salvia (d) Fig Answer: (a) Commelina. Question 6. Male and …
Even in absence of pollinating agents
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WebMajority of flowering plants use a range of animals as pollinating agents. Bees, butterflies, flies, beetles, wasps, ants, moths, birds (sunbirds and humming birds) and bats are the common pollinating agents. (Figure 2.11b). Among the animals, insects, particularly bees are the dominant biotic pollinating agents. WebJul 26, 2024 · Cleistogamous flowers produce assured seed-set even in the absence of pollinators. Cleistogamy leads to inbreeding depression. b. Geitonogamy: ... It is functionally cross-pollination involving a pollinating agent. But it is genetically similar to autogamy since the pollen grains come from the same plant.
Webeven in absence of pollinating agent seed -setting is assured in (1) salvia (2) fig (3) commenlia (4) zostera for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. WebAdaptations for Water Pollination: Water pollination is also termed as hydrophily and mode of pollination is water. It is quite rare in flowering plants and is limited to about 30 …
WebThe pollen from anther lobe fall on the stigma of the same flower and thus, pollination is not dependent on any external agency i.e. pollinators. D. Zostera is a marine grass which is … WebClick here👆to get an answer to your question ️ Even in the absence of pollinators, assured seed set will be there in ... the flowers remain closed even after reaching maturity. So, self pollination becomes mandatory and is independent of the agents of pollination, giving rise to seeds. So, the correct answer is, ' Cleistogamous flowers ...
WebHere, the agents of pollination are birds, insects, water, wind, and animals. Different type of cross-pollination is: ... Flowers have the ability to churn out diaspores even in the absence of reproduction. Flowers can also facilitate the fusion of sperms and eggs from the same or separate flowers.
WebMar 30, 2024 · Delineating quiescence and dormancy. Quiescence (noun) is a labile state of a cell, embryonic or meristematic structure, where division of the cell or cell population is repressed by non-cell-autonomous processes. Cell division may not have ceased or stalled, and evidence suggests that mitosis continues even in stem cell populations. dr yanev cohenWebeven in absence of pollinating agent seed -setting is assured in (1) salvia (2) fig (3) commenlia (4) zostera for Class 11 2024 is part of Class 11 preparation. The Question … comic book stores in columbus ohWebJul 15, 2024 · Q.4. Assertion : Chasmogamous flowers require pollinating agents. Reason : Cleistogamous flowers do not expose their sex organs. Answer Answer: (b) The majority of angiosperms bear chasmogamous flowers, which means the flowers expose their mature anthers and stigma to the pollinating agents. There is another group of plants which set … comic book stores in florence scWebWind is another good agent of pollination. Examples of wind-pollinated flowers are corn, rice, and grasses. Wind-pollinated flowers have the following characteristics: Most of them do not have petals. Their stamens and stigmas are exposed to the wind. The stigma is feathery or sticky. Pollen grains stick to it easily. dr yanes oncologyWebEven in the absence of pollinating agents seed-setting is assured ina)... It is because plants like Viola, oxalis and Commelina produce 2 types of flowers - Chasmogamous and Cleistogamous. Cleistogamous flowers do not have well exposed anthers and stigma. In such flowers, only self pollination takes place. comic book stores in champaign ilWebOct 24, 2024 · Commelina benghalensis bears aerial, chasmogamous (stigma and anthers exposed to pollinating agents), insect pollinated flowers. Cleistogamous flowers are … comic book stores in green bay wiWebMar 3, 2024 · pollination, transfer of pollen grains from the stamens, the flower parts that produce them, to the ovule-bearing organs or to the ovules (seed precursors) themselves. In plants such as conifers and cycads, in which the ovules are exposed, the pollen is simply caught in a drop of fluid secreted by the ovule. In flowering plants, however, the ovules … comic book stores in henderson