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.
advantages and disadvantages of protozoa
MR means medical representative. Medical rep has to sell products of pharma companies or drug manufacturers. He has to go to doctors and medical shops to sell drugs and promote dru
classification of virus
Q. What are the enzyme cofactors? Some of enzymes require other associated molecules to work. These molecules are known as enzyme cofactors and they can be, for example, organi
Explain noncompetitive inhibitor A noncompetitive inhibitor can combine with either the free enzyme or the enzyme- substrate complex, interfering both. The most common ty
How dynamic biological processes represented as network? Many dynamic biological processes throughout a wide range of ecological scales are easily represented as dynamical netw
Q. What are the examples of secretory cells? Endocrine and exocrine pancreatic cells, parathyroid and thyroid endocrine cells, adenohypophysis, adrenal and pineal endocrine cel
Asexual Reproduction in Animals Reproduction may be referred as production of true copies. Most of the animals that are quite familiar to us generate male and female gametes (
How can the excretory system of annelids be described? In each segment (metamere) of the being a pair of complete excretory structures called metanephridium exists. The metanep
What is coronary disease? Coronary disease, or coronary insufficiency, is a disease in which there is total or partial obstruction of one or more of the arteries that irrigate
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