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

How do foods and animals become contaminated with dioxin, Normal 0 ...

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

Nutrition, type of nutrition in platypus and ant eater

type of nutrition in platypus and ant eater

Glucose rehydration therapy, The movement  of Na + and glucose  from the l...

The movement  of Na + and glucose  from the lumen  of the intestine  across  the epithelial  cell to the blood  sets up a dissimilarity  in osmotic  pressure  across  the cell. As

Headache associated with neurological diseases, Headache Associated with Ne...

Headache Associated with Neurological Diseases Headache is a symptom of many nervous system disorders, usually resulting from the distortion of pain sensitive structures. Commo

Hybridization, Hybridization  is the reaction by which pairing of the compl...

Hybridization  is the reaction by which pairing of the complementary strands of nucleic acid happens. DNA is usually double-stranded, and when these strands are separated form each

Define iron requirements of infants, Define Iron requirements of infants? ...

Define Iron requirements of infants? The maintenance needs for all age groups is 14 mcg/kg body weights. For infants and preschoolers, iron needs for growth and' expansion of b

What are energy allowance, Energy Allowance: Energy Allowance: The  p...

Energy Allowance: Energy Allowance: The  patient's requirement for  energy  varies with the physical activity and physiological condition. For instance, consider a person con

Define water as a source of dietary minerals, Define Water as a source of d...

Define Water as a source of dietary minerals? Although water is composed of only oxygen and hydrogen, the water we drink or use in food preparation can contain significant amou

Choice of transgenic animal, C h oice of transgenic animal First and ...

C h oice of transgenic animal First and foremost is the selection of animal species in which gene of interest is to be transferred. Whatever is the goal of production of tran

Hormones secreted by adrenal gland, Hormone s . Cortical steroids (cortico...

Hormone s . Cortical steroids (corticoids-hormones of adrenal cortex) are grouped into three catagories : mineralocorticoids, glucocorticoids and gonadocorticoids. (i) Mine

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