PLANT WATER RELATION Root: The descending underground part of the plant which helps in absorption of water and mineral from the soil is called root. Velamen: The outer layer of empty cells of epiphyte which helps in absorption of water directly f…
ORIGIN AND EVOLUTION OF LIFE Protobiogenesis: The origin of life on earth is called protobiogenesis. Cosmozoa/ Panspermia: The hypothetical seeds or spores which came from a distant planet and led to the beginning of life are called cosmozoa. Ab…
REPRODUCTION IN ANIMALS Reproduction: It is a process by which an organism produces young ones like themselves. It is an essential process for the continuity of generation. Asexual reproduction: The reproduction which does not involve the fusion…