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

Classification of multicellular animals, Classification of Multicellular An...

Classification of Multicellular Animals The multicellular animals (Animalia) originated from the simpler protozoan protists. You know the simpler multicellular animals further

Define stomata, What are the stomata? How these structures participate in t...

What are the stomata? How these structures participate in the plant transpiration? The Stomata (singular, stoma) are small specialized passages for gases and water present in t

What are degenerative diseases, Q. What are degenerative diseases? The ...

Q. What are degenerative diseases? The Degenerative diseases are non-infectious prevalent diseases whose incidences increase with aging.

Why are the salt and sugar used, Q. Why are the salt and sugar used in the ...

Q. Why are the salt and sugar used in the production of dried fruits and dried meat? Substances that sustain a highly hypertonic environment, like salt and sugar, are used in t

Define e-ptfe suture material, Define e-PTFE suture material The e-PTF...

Define e-PTFE suture material The e-PTFE suture material is a nonabsorbable monofilament that has high tensile strength, good handling properties, and good knot security, but

Plant cell wall react when it is placed in hypotonic medium, How does the p...

How does the plant cell wall react when it is placed under hypotonic medium? Ans) The plant cell wall (the covering of the cell outside to the cell membrane) is made of cellulos

Define reagents-nelson somogyi method for glucose estimation, Define Reagen...

Define Reagents - Nelson Somogyi Method for Glucose Estimation? 1. Alkaline copper reagent Alkaline A- Buy commercial from SDS chemicals etc Alkaline B- Weigh 6.25 g anhy

Is the bone marrow made of osseous tissue, Q. In which bones can bone marro...

Q. In which bones can bone marrow chiefly be found? Is the bone marrow made of osseous tissue? Bone marrow can mainly be found in the internal cavities of flat bones, like the

Explain the fistulative surgery - endodontic surgery, Explain the Fistulati...

Explain the Fistulative surgery - Endodontic Surgery = (Incision and drainage) 1 Cortical trephination 2 Decompression 3

Explain about vitamin E, Vitamin E (DL-α-Tocopherol) DL-α-Tocopherol is...

Vitamin E (DL-α-Tocopherol) DL-α-Tocopherol is a yellow to red-brown,  clear, viscous oil almost without odour which decolourise when exposed to light and air. DL-α-Tocopherol

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