primitive roots

The division Pteridophyta includes a group of primitive vascular plants, commonly called pteridophytes. The adult plant body in these plants is a sporophyte. It shows differentiation into true roots, stem and leaves. The stem is mostly herbaceous. Leaves may be smaller or ..

The division Pteridophyta includes a group of primitive vascular plants, commonly called pteridophytes. The adult plant body in these plants is a sporophyte. It shows differentiation into true roots, stem and leaves. The stem is mostly herbaceous . Leaves may be smaller or large..

>Fragmentation takes place in some lower plants and animals such as some worms. The mature organism breaks up into two or more pieces or fragments. The fragments then grow into complete organisms. Regeneration of new plants from the vegetative parts of the parent plant is called vegetative propagat..

. Cyanobacteria are characterised by the presence of phycocyanin (blue) and chlorophyll (green) pigments. The Kingdom Protista includes primitive unicellular eukaryotic organisms. Protista are mainly represented by unicellular algae (such as diatoms) and protozoans - rhizopods, flagellate..

>Fragmentation takes place in some lower plants and animals such as some worms. The mature organism breaks up into two or more pieces or fragments. The fragments then grow into complete organisms. Regeneration of new plants from the vegetative parts of the parent plant is called vegetative propagat..