DNA is a double helix structure comprised of nucleotides. A nucleotide, in turn, is made up of phosphate molecule, deoxy..
Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like or..
Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..
Mutations can also influence the phenotype of an organism. This tutorial looks at the effects of chromosomal mutations, ..
Photosynthesis is the process that plants undertake to create organic materials from carbon dioxide and water, with the ..
Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..
