Intellectual or developmental disabilities: Types list. The list of types of Intellectual or developmental disabilities mentioned in various sources includes: 1  Cornea Plana 1. 2  Pervasive developmental disorders. 3  Autism. 4  Asperger syndrome. 5  Autism, susceptibility to, 13. 6  Autism, susceptibility to, 10. 7  Autism, susceptibility to, 11.
Definition of MERISTEM. : a formative plant tissue usually made up of small cells capable of dividing indefinitely and giving rise to similar cells or to cells that differentiate to produce the definitive tissues and organs. â merÂ·iÂ·steÂ·matÂ·ic \Ëmer-És-tÉ-Ëma-tik\ adjective.
Meristems: There are 3 main types of meristematic tissue in vascular seed plants ---- apical, intercalary, & lateral meristems. Apical Meristem occur at the tips of roots and shoots and are responsible for the length-wise extension of the plant body known as primary growth.lants have 3 tissue systems --- ground, dermal, and vascular tissues. Plant tissues make up the main organs of a plant --- root, stem, leaf, & flower.