Pteridophytes and phanerogamic plants
Why the pteridophytes are better adapted to the dry land as compared to the bryophytes? Were pteridophytes always less abundant rather than the phanerogamic plants?
Expert
Though bryophytes and the pteridophytes have water-dependant gametes for the fecundation emergence of conductive vessels in this last group facilitated life within the terrestrial environment. Conductive vessels of pteridophytes gathered the water from moist soil and distribute it to the cells. Bryophytes do not have this option and they depend entirely upon the water that arrives at the aerial part of plant and thus they need to live within the humid or rainy places. Before ascension of phanerogamic plants (plants which have the seeds) the pteridophytes were the plants which predominated within the terrestrial environment. The large pteridophyte forests of the Carboniferous period (which is named after the pteridophytes) are responsible for the formation of coal deposits, majorly in the Asia, Europe, and North America; the Carboniferous period occurred between 290 and 360 million years ago and is the part of Paleozoic era.
Why does urinary volume raise when alcoholic beverages are ingested?
Are there any photosynthetic fungi? How fungi nourish themselves?
The Managerial Grid The concept of managerial grid was created by R.R. Blake and Jane S. Mouton of USA. They emphasized that leadership style consists of facts on both task oriented and relation oriented behavior in varying
In chemical terms how the neuronal repolarization is achieved?
Write down the main manifestations of the leishmaniasis?
compare the methods of digestion in protozoans and sponges
What amount of time is required for a telemarketing campaign?
This case concerns the introduction of TQM into an outpatient department of a district hospital. You are requested to help in the introduction of TQM into the Outpatient Department of this Public Sector Genral Hospital. ( 3000 words) Q : External rigid carapace of Name the external rigid carapace of arthropods? From which substance is it made? Which kind of organic molecule is that substance?
Name the external rigid carapace of arthropods? From which substance is it made? Which kind of organic molecule is that substance?
What do you mean by “mutualist exploration of the cellulose digestion”, a phenomenon which takes place in some insects and mammals?
18,76,764
1932521 Asked
3,689
Active Tutors
1412013
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!