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The heart is made up of four chambers. The ones at the bottom are called right and left ventricles and those at the top are the left and right atria. The left and right sides are divided by the septum, a ...
Inspiration:-Diaphragm muscles contract, pulling the diaphragm downwards-External intercostal muscles contract pulling ribs upwards and outwards-Thoracic cavity increases in volume, causi...
B-lymphocytes are involved in the humoral response and produce antibodies specific to the antigen. The antibodies bind to antigens and causes the virus to clump together/agglutina...
Named structures : trachea, bronchi, bronchioles, alveolinote: surface area increases as you go down levels, highest SA at alveoliBreathing in : diaphragm contracts and exte...
Nitrates and phosphates are leached into a slow-moving water body (e.g. a lake). This results in an algal bloom on the surface of the water body. The algae block sunlight and prevent it from reaching aqua...
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