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Irritability is the ability of an organism to perceive and respond to changes in internal and external environment or stimuli. […]

Animal Hormones In animal, hormones are produced inductless glands called endocrine system and release straight to the blood stream which […]

GROWTH Growth is defined as an irreversible increase in volume, size, numbering of parts, length and weight of an organism. […]

Cellular respiration occurs in two aim stages involving series of chemical reactions and respiratory enzymes. First stages Glycolysis Glycolysis is […]

Nutrition is defined as the process by which living organisms obtain and utilize food materials from external environment for metabolic […]

PLASMOLYSIS Plasmolysis is defined as the shrinkage of the cytoplasmic lining from the cell wall or cell membrane when the […]

Cell of different organisms exist in different forms. Some are single and free living, others may be colonial, filamentous or […]

Function of cell components Cell organelles are defined as all the structures outside the nucleus but floating on the cytoplasm. […]

The world is believed to have been occupied by millions of different plants and animals. These plant are   animal are […]

Adaptation is a change in an organism that make it to adjust or survive in its environment. The various animals of […]