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.
Asker's rating. Report Abuse. 1) a. ionic, because magnesium is a metal and oxygen, a nonmetal. b.ionic, strontium is a metal, chlorine is a non-metal. c.ozone is covalent, it contains 3 oxygen atoms sharing electrons to form a bond.zone, O3 covalent d. Methanol, CH4O covalent (C and O are nonmetals and H is a metal) *a metal bonded with a nonmetal forms an ionic bond; also, when an element is bonded to itself it forms a covalent bond 2.