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In insects, air enters the body through
Insect bodies have openings, called spiracles, along the thorax and abdomen. These openings connect to the tubular network, allowing oxygen to pass into the body, regulating the diffusion of CO2 and water vapor.
Blood is red coloured due to presence of
Blood is red coloured due to the presence of hemoglobin pigment that carries oxygen.
Inhalation is the
The part of breathing during which oxygen rich air is taken in is called inhalation.
During exhalation, the ribs move
During exhalation, i.e. releasing air during respiration, the ribs move downwards to reduce the volume of the thoracic cavity.
Plants breathe through their stomata located in their
Stomata are small openings on the leaves surface through which exchange of gases takes place in plants.
Gills are respiratory organs in
Gills are respiratory organs in fish. Gills intake oxygen from water.
Breathing is a
In anaerobic respiration which chemical substance is produced?
Anaerobic respiration occurs in the absence of oxygen and is less efficient than aerobic respiration. Unlike aerobic respiration, the end products here are ethyl alcohol as in alcoholic fermentation and lactic acid as in animal cells.
Thus Option C is correct.
More energy is released in
During aerobic respiration, complete oxidation of food takes place and more energy is released in form of ATP.
The opening of the pharynx to larynx is guarded by
The pharynx opens in the larynx through the glottis which is guarded by leaf-like unpaired cartilage which is called epiglottis. It prevents the entrance of food into the trachea.