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The genetic code refers to DNA, which is like a blueprint that can be found in all living organisms. DNA is made up of 4 nucletotides: Adenine (A), Thymine (T), Guanine (G) Cytosine (C), whether in a b...

Deviation from homeostasis causes the activation of feedback loops in order to restore equilibrium to the organism. 

An example of a negative feedback loop is the homeostasis of blood glu...

Another proposed model is induced fit. This suggests that the substrate and active site are not a perfect match to each other. So inorder to fit together both the substrate and active site must change sha...

Very thin walls result in a short diffusion distance which makes gas exchange particularly favourable.

Lots of branches and sacs result in a large surface area so gas exchange can be maxi...