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Throughout the body, blood is transported through vessels (arteries, veins and capillaries). Within the arteries (biggest vessels), different factors can cause the build up of cholesterol in the wall of t...

Non- disjunction in meiosis can take place at both anaphase I and II. When there is an error in the separation of homologous chromosomes (anaphase I) or sister chromatids (anaphase II), one of the gametes...

There are several simple steps that occur each time a skeletal muscle contracts which follow the sliding filament model.
Firstly a nerve impulse travels down a motor neuron releasing neurotransmitte...

Our body's immune system is responsible for preventing our organism's infection from foreign ones. Any such foreign particle that may trigger an immune response is known as an antigen. What's really impre...

The light-dependent reaction along with the Calvin cycle (light-independent) make up the process of photosynthesis in organisms such as plants, algae and cyanobacteria. In the light-dependent reaction lig...