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The sun provides the initial energetic input for most terrestrial and aquatic ecosystems. Producers (commonly green plants) transform sunlight into food via photosynthesis where light energy is converted to ...

All cells undergo cell division in order to replicate themselves, and this process is called the cell cycle. At the end of the cell cyclle, 2 identical daughter cells are formed. Before the major part of the...

A diet high in fat can lead to the formation of atheroma plaques with in blood vessels. These plaques make the walls of vessels rougher which increases the likelyhood of a clot forming. If a clot moves to, o...

Unlike animal and plant cells, bacteria cells lack membrane bound organelles including: mitochondria, chloroplasts and a 'true nucleus'. Instead Bacterial DNA forms a single strand within the cytoplasm. Bact...

The neuron is the basic working unit of the brain, a specialized cell designed to transmit information to other nerve cells, muscle, or gland cells. Neurons are cells within the nervous system that transmit ...