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During inhalation, the intercostal muscles contract causing the rib cage to move up and out. The diaphragm also contracts and flattens. This causes the thorax to expand, increasing the volume and decreasi...

Type 1 is insulin-dependent diabetes and is caused due to the underproduction of insulin, because the body attacks its own beta-cells which are needed to produce insulin (autoimmune disease). This means t...

Carbon dioxide levels, light and temperature

Although DNA and RNA belong to the same class of biological molecules, they have many differences in their structure and the location at which they are found.
Firstly, RNA is a single polynucleotide...

Blood glucose is controlled via a negative feedback mechanism. High blood glucose is detected by B-cells of the Islets of Langerhans in the pancreas, and in response to this, these cells secrete insulin. ...