Pteridophytes:Such division involves horsetails, club mosses, and ferns. The oldest acknowledged pteridophytes are fossils from the end of the Silurian period, that is, 380 million years ago. Pteridophyta comprises the earliest acknowledged vascular plants. Vascular plants are those plants which have the vascular tissue which is the conducting tissue of xylem and phloem. At times each vascular plant is involved in one division that is the Tracheophyta. This is to emphasize the advance nature of the vascular tissue over simple conducting cells of some Algae and Bryophytes. Tracheophyta involves pteridophytes and the more advanced spermatophytes (i.e., seed bearing plants) as two classifications.
Existence of vascular tissue is a feature of sporophyte generation that in the bryophytes is small and reliant on the gametophyte. The occurrence of vascular tissue in sporophyte is one of the reasons why sporophyte generation has become dominant one in all vascular plants. The vascular tissue of pteridophytes exhibits certain primitive features as compared with flowering plants. The xylem of pteridophytes has only tracheids instead of vessels and the phloem has sieve cells instead of sieve tubes.
Vascular tissue has two significant roles to execute initially it forms a transport system, conducting water and food about the multi-cellular body, therefore leading to the development of big, complex bodies. Secondly, xylem, one of the vascular tissues, supports such big bodies as xylem holds lignified cells of great strength and firmness.
Figure: Graphical symbolization of life cycle of Pteridophyte (Homosporous)
Latest technology based Biology Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Bryophytes homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Bryophytes, project ideas and tutorials. We provide email based Bryophytes homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Bryophytes. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Biology homework help and assignment help services. They use their experience, as they have solved thousands of the Biology assignments, which may help you to solve your complex issues of Bryophytes. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
tutorsglobe.com pathogenesis of mycetoma assignment help-homework help by online mycetoma tutors
tutorsglobe.com mobilizing resources for financing assignment help-homework help by online objectives of fiscal policy tutors
looking for affordable and top-notch nuclear reactor physics assignment help? sign up with us and score top grades.
Theory and lecture notes of Turing machine acceptors and decidability all along with the key concepts of turing machine acceptors and decidability, Turing Machines, Deterministic TM, Tape actions. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Turing machine acceptors and decidability.
Top rated Probability Assignment Help tutors are available 24x7 and offer quality driven authentic papers and help to fetch top scores at rational prices.
tutorsglobe.com decomposition of sulphur compounds assignment help-homework help by online sulphur cycle tutors
Mixer and Grinder are kitchen appliances which make easy the task that is related with mixing and crushing the food.
Dehydration of Alcohol tutorial all along with the key concepts of E1 mechanism for 2- Propanol, Reagents and Chemicals, Experimental procedure, The product analysis
Passive Filters tutorial all along with the key concepts of Band-pass filter, Band-reject filter, Notch Filter, transfer function, Low-pass filter, High-pass filter, Amplitude response of high-pass, Phase-shift filter
tutorsglobe.com theories of translocation assignment help-homework help by online mineral nutrition tutors
Chemical properties of Carbohydrates tutorial all along with the key concepts of Reactions involving Carbohydrates, Osazone Formation, Chain Shortening and Lengthening and Formation of Glycosides
www.tutorsglobe.com offers answering questions to short-run equilibrium positions of a firm and industry, perfect competition assignment help - homework help in economics theory.
tutorsglobe.com criticism assignment help-homework help by online marginal utility tutors
Our highly qualified Psychobiology Assignment Help tutors work efficiently to ensure students get the top-notch paper every time.
www.tutorsglobe.com offers Features of Standard Cost and Costing homework help, assignment help, case study, writing homework help, online tutoring assistance by accounting tutors.
1940486
Questions Asked
3689
Tutors
1478670
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!