Tagged: Epidermis

January 3, 2018

Important excretory organs in man’s body and Structure of urinary system

The biological processes that occur in the bodies of living organisms are carried out through the chemical reactions that leave some waste products, The living organism must get rid of these waste products as...

Biology

December 12, 2017

Transportation in plant, Structure and role of the plant stem in the process of transportation

Each organism ingests what it needs from various substances by different means, There is no need for specialized transport tissues in primitive plants (like algae), as the raw material (CO2, water, and mineral salts)...