Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
In the evolution of whales, there is evidence that whales and hippo form a monophyletic group. Show all the evidence that supports the close relationship between whales and hippos
PHYLUM CHORDATA Definition and Introduction Bilateral and deuterostomial eucoelomate eumetazoa, basically possessing ,in the embryo or throughout life , a flexible,
Mycotic diseases Mycotic (fungal) diseases of animals and birds are of considerable importance both from public health and economic point of view. The fungi responsible for an
classification of grantia
CONTRO L OF EXCRETION - 1. In brain hypothalamus is osmocentre that controls minerals. 2. Cells of DCT & arterioles combien to form Juxta glomerular node, it se
What is Punnett Squares in genetics? The probability, or likelihood, that a certain phenotypic or genotypic trait will appear in offspring can be predicted and diagrammed using
Aril - Seed Appendages It is an outgrowth that arises from the funicle or the testa near the raphe and covers the seed partially or completely. It is often referred to as the
How are gametes formed in the pteridophyte life cycle, by mitosis or meiosis? What is the type of meiosis that occurs in pteridophytes? In pteridophytes gametes are made by mit
lichens
#question.what are the organs of respiration in the lwer form of animals .
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd