Explain the behaviour of pteridophytes, Biology

Assignment Help:

Q. Why are pteridophytes better adapted to dry land than bryophytes?

Were pteridophytes always less abundant than phanerogamic plants?

Although pteridophytes and bryophytes have water-dependant gametes for fecundation the emergence of conductive vessels in this last group facilitated life in a terrestrial environment. The conductive vessels of the pteridophytes collect water from the moist soil and distribute it to the cells and Bryophytes do not have this alternative and they depend entirely on the water that reaches the aerial part of the plant and so they need to live in rainy or humid places.

Before the ascension of the phanerogamic plants (plants that present seeds) the pteridophytes were the plants that predominated in the terrestrial environment and the large pteridophyte forests of the Carboniferous period (named after the pteridophytes) are responsible for the formation of coal deposits that mainly in Asia, Europe and North America the Carboniferous period occurred between 290 and 360 million years ago and is part of the Paleozoic era.


Related Discussions:- Explain the behaviour of pteridophytes

Who is known as father of english botany, Who is known as Father of English...

Who is known as Father of English Botany? William Turner (1515-1568), whose 'A New Herbal' printed in English appeared in 1551 (first part), 1562 (second part) and 1568 (third

Explain about g-protein, Explain about G-protein   A.  When an agonist ...

Explain about G-protein   A.  When an agonist binds to the binding site of a G-protein-coupled receptor (GPCR), this leads to GTP displacing a GDP bound to the alpha subunit of

Excretion in non-chordates, Excretion in Non-Chordates Excretion as de...

Excretion in Non-Chordates Excretion as described under Introduction of this unit refers to removal of the waste products of metabolism - carbon dioxide (CO 2 ) and water rele

Explain adverse effects of ribavirin, Adverse Effects of Ribavirin  Sys...

Adverse Effects of Ribavirin  Systemic ribavirin has been associated with hemolytic anemia. Oral ribavirin plus interferon appears to cause a higher incidence of cough, pruritu

Explain the concerns of genetically modified (gm) foods, Normal 0 ...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Hypothalamus and pituitary, Hypothalamus and Pituitary The most obviou...

Hypothalamus and Pituitary The most obvious neuroendocrine link is between the hypothalamus and pituitary. The hypothalamus is a part of the brain which is connected to the pi

Define drug effects on vitamin and mineral metabolism, Define Drug effects ...

Define Drug effects on Vitamin and mineral metabolism? Vitamin and mineral metabolism: Micronutrients are required as cofactors or coenzymes in many metabolic pathways, includi

Explain procedure for simple staining of bacterial cultures, Explain Proced...

Explain Procedure for Simple Staining of Bacterial Cultures? Now carry out the exercise following the steps given herewith: (1) Prepare thin bacterial smear on clean glass s

Define binding of protein with other compounds, Define Binding of Protein w...

Define Binding of Protein with Other Compounds? In addition to water, lipids and volatile flavours, food proteins can bind a number of other substances through weak interaction

Explain the advantages of shaking water baths, Explain the Advantages of Sh...

Explain the Advantages of Shaking Water Baths? The advantages of using shaking water baths are: (a) Uniform and rapid transfer of heat to the culture can be obtained, and

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