Emetics
agents that cause vomiting. They may act directly on the gastrointestinal tract, bringing about emesis through local irritant effects, or indirectly, through their effects on the chemoreceptor trigger zone in the postremal area near the medulla.
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..
DNA is a double helix structure comprised of nucleotides. A nucleotide, in turn, is made up of phosphate molecule, deoxy..
Meiosis is a form of cell division that creates gametes. It is comprised of two divisions that in the end, the resulting..
Viruses possess both living and non-living characteristics. This unique feature distinguishes them from other organisms...
Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..
This tutorial noted some of the physical and chemical factors that provide the framework of a running water community in..
