The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..
This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..
Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..
Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..
Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..
Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..