... marchantia. pteridophyta the plant body is differentiated into roots , stem and leaves and has specialised tissue for the conduction of water and other ...
Maintain physiological integrity in the dry state. Mobilize repair mechanisms upon rehydration ... descendant comparison using. reconstructed ancestral states ...
Gen tica del sexo Reproducci n sexual La reproducci n sexual consiste en la formaci n de las c lulas germinales o gametos (meiosis), su aislamiento de las ...
systems of classification classification of plants algae bryophytes mosses pteridophytes gymnosperms angiosperms plant life cycles & alternation of generations ...
meristems - vascular cambium, cork cambium - wounding of plant cells initiates cell divisions at the ... but wound-induced mitotic activity is self-limiting ...