In this article we will discuss about:- 1. T.S. Leech through Crop Regions 2. T.S. Leech through Rectum and Post. Sucker. T.S. Leech through Crop Regions: 1. It is the slide of T.S. of Leech through crop region. 2. It shows following characters: (a) Body-wall is triploblastic and is comprised of a thin cuticle, an epidermis of columnar cells with [...]
In this article we will discuss about the structure of Bonellia with the help of a diagram. 1. It is a small marine and burrowing worm found living in "V" shaped holes in mud or sand or in crevices between rocks along seashores. 2. It exhibits sexual dimorphism. 3. The female possesses an ovoid green body of about 5 cm., [...]
In this article we will discuss about the killing and dissection of silk worm larva. The silkworm larvae are easily collected from the farmers rearing silk worms or silk worm rearing centre. The 5th instar larva is suitable for dissection. Killing: The larva is immobilised with a few drops of 50% alcohol squeezed out on it from a piece of [...]