The below mentioned article provides notes on plants and animals. Man has always been impressed by the vastness and variety of living things. Life manifests itself in infinite numbers and diverse forms. Leaving aside the less known and submicroscopic viruses, the plants and animals are the two important kinds of living things. Man himself is an animal, and so too [...]
The below mentioned article provides notes on Mollusca (snail). The molluscs (mollis = soft) are soft-bodied animals with a hard external or internal shell. The phylum includes forms like chitons, snails, slugs, clams, oysters, sepia, loligo, octopus, etc. Generally aquatic, some terrestrial and amphibious forms are also present. In Mollusca A muscular foot is present as the thickening of the [...]
The below mentioned article provides a study note on inoculum. During unfavourable conditions like sudden change in temperature (high or low), effect of poisonous gas, disturbance of soil moisture relation etc., pathogen may occur inside the perennating organ or organs. With the onset of favourable condition, it becomes active and causes disease. The portion of the pathogen responsible for infection [...]