Give any two favourable features of such a flower. Animals are attracted to flowers by ... As mentioned earlier, following compatible pollination, the pollen grain germinates on … d) forming large number of fruits ... Name Email * Message * Thanks for visiting this site.Enjoy Biology Books. Question 3. Give any two favourable features of such a flower. Imperfect flowers, which have only one gender of sex organ, are the most common among angiosperms. Name the pollinating agents fo flowers like maize and wheat. Match the following: (MAY-2010) Answer: Question 4. They cannot reach the stigma by themselves. : :The inflorescence develops within a strong, tough, pointed toubje sheath called spathe, which after full development splits from top to bottom and releases […] Cross-pollination occurs when pollen is transferred from one flower to another flower on the same plant, or another plant. It can […] Bees, ... inflorescence to make them conspicuous. Name the pollinating agents fo flowers like maize and wheat. NCERT DC Pandey Sunil Batra HC Verma Pradeep Errorless. Because imperfect flowers are either male or female, they breed by cross-pollinating. Name the layer which nourishes developing pollen grains. 5.Mention the pollinating agent of an inflorescence of small dull coloured flowers with well exposed stamens and large feathery stigma. 1.An inflorescence in which flowers arise from different point but reach at same point is known as. There are basically two types of pollination- Biotic and Abiotic.Biotic Pollination is through the insects, some birds and animals, etc. When the pollen of the flower is transferred to the stigma of the same flower, it is called self-pollination. Flowering, Floral Biology and Pollination in Coconut Flowering: In a bearing palm, every leaf axil can produce a Spadix or infloresence which under normal conditions various from 12 to 15 annually. Pollinating agents were not mentioned. Bakhtadze (1932) stated that bees are the chief pollinating agents of tea, but that there were not enough bees present in his area to effect complete pollination of all the flowers. Pollen grains are immobile. Plants with imperfect flowers can be easily bred for color, to increase food yields and build resilience, or to breed out diseases. [Delhi 2009] Ans. In mustard raceme inflorescence is present here, the flowers are borne in acropetal order. The transfer of pollen grains from the anther to the stigma is called pollination. a) catkin. He made no mention of bringing in pollinators to the crop. Microsporangium is generally surrounded by four wall layers. Give any one characteristic of pollen grains produced by such flowers. ADVERTISEMENTS: Read this article to learn about the pollination in plants: self pollination and cross pollination with respective advantages and disadvantages! Cross-pollination requires pollinating agents such as water, wind, or animals, and increases genetic diversity. Mention the pollinating agent of an inflorescence of small dull-coloured flowers with well-exposed stamens and large feathery stigma. Some did not mention traits of the PA morph at all (Atkinson and Upson, 2006; Ohba, 2006), while others considered the PA inflorescence to be a male inflorescence resulting from the abortion of female flower clusters (Lu et al., 1999; Li et al., 2005) or a compound structure of … Give any one characteristic of … b) spadix ... attracting insects for cross pollination. ANIMAL POLLINATING AGENTS- Majority of flowering plants use a range of animals as pollinating agents. (MAY-2010) Answer: Tapetum. Copy the picture given above and mark the following: Physics. An external agent is required for this. Pollination and cross pollination with respective advantages and disadvantages of pollen grains produced by such flowers animals, increases... 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