In this article we will discuss about the parts and working of phase contrast microscope. 1. Phase contrast microscope was discovered by Professor Frits Zernike of Netherlands. Its commercial production was first started in Germany in 1942. For the recognition of his discovery of phase contrast, Zernike was awarded Noble Prize for Physics in 1953. 2. Only living and unstained [...]
In this article we will discuss about the dissection of earthworm. Also learn about:- 1. The Alimentary System 2. Dissection of Nervous System 3. Dissection of Reproductive System. Earthworms are delicate animals (Fig.2.1) and need careful handling to avoid damage to internal organs. Killing: Wash the live specimens with water to get rid of mucus. Drop them in a petri [...]
In this article we will discuss about the dissection of blue bottle fly. Also learn about:- 1. The Alimentary System 2. Dissection of Nervous System. Blue bottle flies can be easily collected from fruit markets of any town or city. Killing: The flies can be killed with chloroform within a very short time. Dissection: Fix the freshly killed specimen (Fig. [...]