A well-composed photograph is really a matter of opinion, but there are a few tricks that tend to result in better pictures. That's what we're going to take a look at today. The rule of thirds is the ...

Adequate nutrition is one of the pillars of public health. Before developing and implementing effective intervention programmes to improve nutrition at the population level, it is important to know ...

The composition of cell walls varies depending on the function of the tissue and the species of plant. Primary cell walls surround expanding cells in young tissues, whereas thickened secondary cell ...