To prevent and eradicate the mosquito borne diseases, different type of measures have been undertaken. Such measures are: A. Prevention of infection: Personal protection against the attack of mosquito can be done by the following ways: (a) Protection against mosquito bites must be done by covering the body with clothing's after sunset. (b) Doors, windows, ventilators etc. are to be [...]
In this article we will discuss about the mites and ticks as vectors. 1. Mites: Mites surpass all other Arachnids in numbers and they are very small sized Acarines. There is a great variety of body form in the Acarina, some appearing grotesque. The majority are more or less round or oval without division into head, thorax and abdomen, but [...]
In this article we will discuss about the structure of polystomella. This will also help you to draw the structure and diagram of polystomella. 1. It is a marine protozoan common on sea shores. 2. Body enclosed in a many chambered shell and each chamber is perforated with numerous pores. 3. Chambers are arranged in a spiral fashion. 4. Ectoplasm [...]