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

Define transverse section of body of male ascaris, Define Transverse sectio...

Define Transverse section of body of male Ascaris? 1. Body wall consists of the following: (a) Cuticle is the outermost layer. It is a thick, tough, elastic membrane

Pathogenesis of viruses, Pathogenesis of Viruses Viral diseases An...

Pathogenesis of Viruses Viral diseases An indicated before, viruses cause a number of infectious human diseases from minor ailments like common cold, to fatal disease, lik

Why energy requirement are different in different situations, Why do you th...

Why do you think the energy requirements are different in situations? Well the requirement is dependent on the ways in which the body spends energy. For example in the first c

Role of endarterectomy, Role of Endarterectomy :  Endarterectomy is done a...

Role of Endarterectomy :  Endarterectomy is done as a semi open technique. 5-10mm long incision is made on the outer layers of the coronary artery and plain developed in 11ic thic

Define intermediary metabolites of an athletes, Define Intermediary Metabol...

Define Intermediary Metabolites of an Athletes? Coenzyme Q10 - for the physically active; Co-Q 10 activates cell energy. While you carry out any physical act; run, jump, throw,

What is the cell theory, Cell theory is a theory that asserts that the cell...

Cell theory is a theory that asserts that the cell is the ingredient unit of the living beings. Before the discovery of the cell, it was not examined that the living beings were

What is growth monitoring of an infant, What is Growth Monitoring? In t...

What is Growth Monitoring? In third world countries, about half the children are short and underweight for their age. Inadequate nutrient intake is the main reason. Inadequate

General principles in treatmemt of heart failure, The goals of treating hea...

The goals of treating heart failure are relief of symptoms, improvement in   exercise tolerance, and reduction in the number of hospitalizations, decreasing morbidity and mortality

Show biological diversity is meiosis or mitosis, Q. For the biological dive...

Q. For the biological diversity is meiosis or mitosis the more important process? Meiosis is the cell division process that allows the formation of gametes to sexual reproducti

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