Pollination, Biology

Assignment Help:

Pollination

Pollination refers to the transfer of pollen from dehiscing anthers to the pistil. Unlike animals, plants cannot move to their mates for sexual reproduction. Hence, they need some external device or agency for the transfer of pollen grains from the male parent to the stigma of the female parent. Exceptionally, in Vallisneria, an aquatic plant, complete male flower may be transported to the female flowers, the physical (wind and water) and biological (insects, birds and bats) agencies promote cross-pollination. The dehiscence of anthers and the transfer of pollen are the prime requirements of pollination.


Related Discussions:- Pollination

Osmoregulation in animals, Osmoregulation in Animals Osmoregulation as...

Osmoregulation in Animals Osmoregulation associates to the regulation of water and ionic content of the body of non-chordate metazoans. These might be osmoconformers / osmoreg

Lower oesophageal sphincter, Q Lower Oesophageal Sphincter? Competency ...

Q Lower Oesophageal Sphincter? Competency of LES (Lower Oesophageal Sphincter) is important. The pressure of this sphincter is controlled by many factors, one of which is hormo

What is the function of the myelin sheath, What is the function of the myel...

What is the function of the myelin sheath? Do all axons present a myelin sheath? The function of the myelin sheath is to get better the safety and speed of the neural impulse t

How two organisms are interdependent, Give an example of how two organisms ...

Give an example of how two organisms are interdependent. Animals generate carbon dioxide and water, which is required by plants. Accept all reasonable answers.

Advice on dischargeperi operative problems, Advice on Discharge :  Patient...

Advice on Discharge :  Patients are allowed to go home on 8th or 9th day. It could be even earlier after off pump coronary artery surgery (OPCAB). They should gradually increase t

Name the classes into which the phylum arthropoda is divided, What are the ...

What are the classes into which the phylum Arthropoda is divided? What are the three main ones and some of their representative species? The three major classes of arthropods a

Explain cori cycle , Under the limiting oxygen conditions experienced in ...

Under the limiting oxygen conditions experienced in by vigorous exercise, the configuration of NADH by glycolysis exceeds the ability of the respiratory chain to oxidize it back to

Classification of different agro-industrial by-products, Classification of ...

Classification of Different Agro-Industrial By-Products The agro-industrial by-products can be grouped according to the content of nutrients namely: (i) Energy rich supplem

Ecological adaptations in animals to desert environment, Ecological adaptat...

Ecological adaptations in animals to desert environment In response to scarcity of water, animats adcipt vario6s strategies to conserve or prevent loss of water. Most of the de

Poultry and duck diseases-marek''s disease, Marek's disease Marek's dis...

Marek's disease Marek's disease is a lymphoproliferative disease of chicken, quails, bantams and other free-flying birds. It is caused by the Gallid Herpesvirus 2 of subfamily

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd