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

Haemodynamic study of constrictive pericarditis, Q. Haemodynamic Study of c...

Q. Haemodynamic Study of constrictive pericarditis? Simultaneous right and left heart studies are useful. Due to exaggerated waves in atria, W-shaped atrial pressure tracing wi

EMBRYOLOGY.., WHAT IS RECAPITULATION THEORY OF EMBRYOLOGY?AND WHAT IS EMBRY...

WHAT IS RECAPITULATION THEORY OF EMBRYOLOGY?AND WHAT IS EMBRYOLOGY

Immunolocalization, uses and advantages and disadvantages of immunolocaliza...

uses and advantages and disadvantages of immunolocalization

What are the identical proteins, Q. Are proteins with the same number of ea...

Q. Are proteins with the same number of each dissimilar amino acid that forms them necessarily identical proteins? Even if many proteins have the same number of each different

Embrylogical devlopment of hypospadias, Embrylogical Devlopment of Hypos...

Embrylogical Devlopment of Hypospadias The development of the penis and scrotum is intluenced by the testes. In the absence of the testes, the female structures of the

Oogenesis, Oogenesis  The process of formation of ova in the ovary is c...

Oogenesis  The process of formation of ova in the ovary is called as oogenesis. The germ cells are found in the form of germinal epthelium around the ovary.These cells are d

Which type of defense cell do viral infections, Q. Of which type of defense...

Q. Of which type of defense cell do viral infections stimulate the multiplication? The main leukocytes that generally participate and multiply in the defense against viral infe

Are there living beings without cells, Are there living beings without cell...

Are there living beings without cells? Viruses are measured the only living beings that do not have cells. Viruses are constitute by genetic material (DNA or RNA) enwrapped by

Common features of eye and limb development, Common Features of Eye and Lim...

Common Features of Eye and Limb Development A comparison of the embryonic development of the very much different organs, the eyes and the limb, points to various interesting

What is viscosity?, Q. What is viscosity? Viscosity is resistance to fl...

Q. What is viscosity? Viscosity is resistance to flow of a liquid. It is a measure of the resistance of a fluid to deformation under shear stress. It is commonly perceived as "

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