PRRS exists in two distinct forms, reproductive and respiratory, and infected farms may experience one or both. A variety of factors, including swine genetics, the specific PRRS virus variants in the herd, health status of the herd, ages of the animals involved, and pregnancy status, may influence the clinical signs.
8495 Karma. 1. Silicon is a metal and oxygen is a non metal hence it will form both ionic and covalent bonds, pauling principle explains the ratio in detail.Was this answer helpful?495 Karma. 1. Silicon is a metal and oxygen is a non metal hence it will form both ionic and covalent bonds, pauling principle explains the ratio in detail.
The structure of silicon dioxide, SiO2. Silicon dioxide is also known as silicon(IV) oxide. The giant covalent structure of silicon dioxide. There are three different crystal forms of silicon dioxide. The easiest one to remember and draw is based on the diamond structure. Crystalline silicon has the same structure as diamond.