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Breathing consists of two phases called inhalation and exhalation. Inhalation In order for air to be drawn into the lungs during inhalation the volume of the thorax must increase . This is brought about due ...

Cell division can be achieved by either mitosis or meiosis. Cell division via mitosis is essential for growth and repair and occurs in nearly all cells in the body, whereas cell division by meiosis occurs in...

The human genome consists of 46 chromosomes, specifically 44 autosomal chromosomes, similar in both males and females, and 2 gender specific sex chromosomes (X and Y). It has been known for many years, based...

Once a month, following ripening, a single egg is released from a woman's ovaries during the menstrual cycle, with the hope of fertilisation. During the act of sexual reproduction, the father's sperm is depo...

The humoral repsonse removes the pathogenic microorganisms which don't enter the cells and requires antibodies produced by B lymphocyctes. Different B lymphocyte cells produce different antibodies, each of w...