This article will guide you about how to study bacteria. Bacteria are minute organisms of enormous number with a high rate of multiplication. The smallest known bacterium is a little over 1 μm in size. Extreme precaution should be taken while handling bacteria—particularly pathogens (disease causing). Maintenance of an aseptic condition is a must in bacteria studies. I. Hanging drop [...]
In this article we will discuss about the study of non-chordatas under microscope. 1. Amoeba sp.: Collection: It is a fresh water protozoan. Collect water from a stagnant pond with a little bottom mud, floating scum, slime, along with the stems and leaves of aquatic weeds. Put all those in a glass jar and leave undisturbed for a few days. [...]
In this article we will discuss about the dissection and structures of different types of fishes. 1. Placoid Scale of Shark: Placoid scales are found in elasmobranchs. Preparation: Cut a small piece of skin from the dorsal surface of a shark (Scoliodon). Put it in a hard glass test tube containing 5 to 10% KOH solution. Boil with constant stirring [...]