Wigs and hairs - seed appendages, Biology

Assignment Help:

Wigs and hairs - Seed Appendages

Seeds of certain plants have epidermal outgrowths or the integuments themselves may form folds and projections that present a wing-like appearance. In the tree Oroxylon sp. a thin, transparently white, circular or oval, disc-like wing spreads all around the two-lobed seed. The seed of cucurbit Zanonia macrocarpa has wings measuring up to 10 cm.

In the drumstick plant Moringa oleifera the seed has three equidistant wings. Seed wings provide large surface area, with optimum strength, combined with a minimum of material. A surprisingly large number of winged seeds can be arranged compactly in a fruit. Wings help the seed to propel, sail or spin some distance away when released from the fruit.

 


Related Discussions:- Wigs and hairs - seed appendages

Explain stem cell therapy, Stem Cell Stem cell therapy could enable ind...

Stem Cell Stem cell therapy could enable individuals to survive and contribute their alleles to the gene pool who might not have already done so thus increasing genetic diversi

Bottleneck for external sources for health care, Bottleneck for External So...

Bottleneck for External Sources for Health Care The implementation bottlenecks arising out of funding by external sources have important implications for the resource allocati

Temperate deciduous forests, Going south of taiga you would reach the tempe...

Going south of taiga you would reach the temperate regions of the planet. These regions experience moderate temperatures on average that change during four distinct seasons. They h

Accidents and losses, Accidents and Losses Accident can be considered ...

Accidents and Losses Accident can be considered as an incident occurring without intention and results in injury, loss of body part or even death of a human being or a few per

Name, what''s you''re name

what''s you''re name

What is the typical feature of the epithelia, What is the typical feature o...

What is the typical feature of the epithelia? How different is it from the connective tissue? The typical feature of the epithelium is the absence or almost absence of space a

Pathology, Pathology: This concerned with the identification of different d...

Pathology: This concerned with the identification of different diseases, causative organs, their prevention and control methods. Pathology is a kind of study or diagnosis of diseas

Explain mixture in basic chemistry, Explain mixture in basic chemistry? ...

Explain mixture in basic chemistry? Mixtures :  Mixtures are produced by combining two or more substances. In contrast to the substances in compounds, the substances that com

How are the epithelial tissues classified, Q. How are the epithelial tissue...

Q. How are the epithelial tissues classified? The epithelial tissues are classified according to the shape of the cells that form it epithelial cells may be columnar, cuboidal,

Endomitosis, why and where endomitosis happen.........?

why and where endomitosis happen.........?

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