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Lab studies allow for high control over extraneous variables. For example, in a simple experiment to test which paper aeroplane flies the furthest, the advantage of doing the study inside, in a controlled en...

Weather is the condition of the atmosphere, now or in the near future - e.g. sunny/raining. Climate is the average weather conditions in a particular place based on weather conditions of the past 30 years i....

Two species that transform into each other by loss or gain of a proton.

Tropomyosin helps to regulate myofibril contraction. Before contraction, tropomyosin covers the myosin binding sites on the actin molecule, preventing the myosin heads from binding. During contraction, calci...

Sickle cell disease is caused by a recessive allele of the haemoglobin gene. When two copies are present (i.e. it is homozygous), many red blood cells become sickle-shaped, leading to disease. However, if on...