They are paired, placed in launae and have canaliculi to receive and send nutritive materials to matrix.
Ecological succession is the process of change in the species structure of an ecological community over time. The time scale can be decades, or even millions of years after a mass extinction
The environment includes abiotic (nonliving) and biotic (living) factors. An ecosystem consists of all the biotic and abiotic factors in an area and their interactions
Atom,molecule,cell,tissue,organism,population,ecosystem,biosphere.
The most common elements present in organic compounds are carbon, hydrogen, oxygen, and nitrogen.
