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

Properties and functions of synapses, Properties and Functions of Synapses ...

Properties and Functions of Synapses There is an interval between depolarisation of the presynaptic terminal and the earliest appearance of a postsynaptic response. This inter

Define absorption of calcium from dietary calcium supplement, Define Absorp...

Define Absorption of Calcium from dietary calcium supplements? Absorption from dietary calcium supplements is important to know, since they are almost universally recommended f

What is the endocrine function of the placenta, Q. What is the endocrine fu...

Q. What is the endocrine function of the placenta? The placenta besides being the organ through which the exchange of substances between the fetus and the mother is done also h

Bacterial diseases-botulism, Botulism Botulism is a rapidly fatal motor...

Botulism Botulism is a rapidly fatal motor paralysis. It is caused by ingestion of toxin of Clostridium botulinum in food. Many species of domesticated, wild animals and birds

Explain therapeutic diets, Explain Therapeutic diets Therapeutic diets ...

Explain Therapeutic diets Therapeutic diets are adaptations of the normal or  regular diet.  In other words, it is a diet  for a patient suffering  from a  specific disease  su

What do you understand by coelenteron, What do you understand by Coelentero...

What do you understand by Coelenteron? The name given to internal cavity of the cnidarians. This is an incomplete gut with just one opening, the mouth. Food to be digested and

Agricultural activities - cause of air pollution, Agricultural activities -...

Agricultural activities - Cause of Air Pollution Agricultural activities too are a major cause of air pollution. About 60 to 65% of carbon dioxide is produced from burning of

Define proline, Define Proline It is a prominent amino acid found in fi...

Define Proline It is a prominent amino acid found in fish and may contribute to sweetness. The sugars ribose, glucose and glucose-6-phosphate are flavour contributors, as is 5-

What are the near point and the far point of the vision, What are the near ...

What are the near point and the far point of the vision? The near point is the closest distance among an object and the eye that makes possible the formed image to be focused,

Of which cells is the nervous tissue constituted, Of which cells is the ner...

Of which cells is the nervous tissue constituted? How is the generic function of this tissue related to the characteristics of the main cell type that forms it? The nervous tis

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