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.
Describe Oxidative Stress in New Cardio-vascular Risk Factors ? In the risk conferred by LDL cholesterol, the oxidative modification of LDL plays a central role, because it is
Elaborate Evolution by Natural Selection ? The conelaboratecept of natural selection lies at the heart of Darwin's Theory of Evolution. Darwin understood that plants and animal
Which of the following statement is true regarding the replication of DNA strands? A. The products of replication include one double helix made exclusively of parental DNA and
Q. Use of Propionates acid in microorganisms? Propionic acid is formed from lactic acid or lactates, as a result of the bacterial action during the manufacturing of swiss chees
State the terms - Blastocoel and Blastopore? During the development of embryo, single cells divide and form a hollow ball of cells one cell layer thick. Cavity inside this holl
Eubiont The origin of true life , eubiont from a pmtobiont involves the acquisition of three major features: 1) assembly of phospholipids and proteins into a cell membrane f
SEMEN - Sperms and secretion of accesory glands collectively known as seminal fluid or semen. It is milky, semi-solid in nature having particular smell. pH : 7.35 - 7.5. Spe
What are the effects of protease inhibitors? In experimental animals, they have been found to be associated with growth inhibition and pancreatic hypertrophy. A negative feedb
Classification of lipids A general classification of lipids based on their structural components is presented in table. Such a classification, however, is possibly too rigid f
Some species of plant are strongly adapted to pollination by certain insects. Characteristics which are regarded as adaptations to pollination by bees are: ( a) white o
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