Why did the Indus Valley Civilization end?
The Indus Valley Civilization began to decline between c. 1900-c. 1500 BCE most likely due to climate change though the reasons for its fall are still debated.
What is the Indus Valley Civilization famous for?
The Indus Valley Civilization is famous for its great cities like Harappa which were technologically advanced and highly cultured urban centers.
Differentiate inspiration and expiration or, differentiate inhalation and exhalation .
Solution INSPIRATION or, INHALATION i)The act of drawing air into the lungs. ii) Rib cages move forward and upward. iii) Contraction of external intercostal muscles and relaxations of internal intercostal muscles . iv) Diaphragm contracts and becomes flattened. v) The Increase in volume of the thoracic cavity. vi) Air pressure in the lungs is less …
Differentiate inspiration and expiration or, differentiate inhalation and exhalation . Read More »
What is Fermentation ?
Solution : Definition of fermentation “Fermentation is an anaerobic process in which energy can be released from glucose in the absence of oxygen..” What is Fermentation? In bacteria, yeast cells, animal muscles, and other tissues, fermentation takes place. The process by which glucose is broken down is anaerobic. Cellular respiration refers to the respiration that …
Respiratory organs of different animals
Respiratory organs of different animals Animals i) Amoeba ii) Earthworm iii) Insects like grasshoppers, cockroaches, houseflies and mosquitoes iv) Fish v) Frogs vi) Aves , Reptiles and Humans vii) Tadpole Respiratory organ i) Cell membrane. ii) Skin. iii) Trachea iv) Gills v) Moist skin , buccal cavity , lungs vi) Lungs vii) Gills
Tobacco is injurious to Health
Tobacco is injurious to Health Using tobacco directly or any product of tobacco in the form of a cigar, cigarettes, bidis, hookah, gutkha, etc., is harmful. The use of tobacco most commonly affects the tongue, lungs, heart and liver. Smokeless tobacco is also a major risk factor for heart attacks, strokes, pulmonary diseases and several …
Smoking is injurious to health.
Smoking is injurious to health. Lung cancer is one of the most common causes of death in the world. The upper part of the respiratory tract is provided with small hair-like structures called cilia. These cilia help to remove germs, dust and other harmful particles from inhaled air.Smoking destroys this hair due to which germs, …
Differentiate aerobic and anaerobic respiration
Solution : Differentiate aerobic and anaerobic respiration
RESPIRATION
The food material taken in during the process of nutrition is used in cells to provide energy for various life processes. Diverse organisms do this in different ways – some use oxygen to break-down glucose completely into carbon dioxide and water, and some use other pathways that do not involve oxygen . In all cases, …