The concepts of centralization and decentralization are important ones to consider as they ultimately affect the effectiveness of schools in educating the children of a nation. Centralization refers to the condition whereby the administrative authority for education is vested, not in the local community, but in a central body.
The normal birth weight for a Wistar rat is between 5-6 grams. Birth weight of less than 5grams can therefore be regarded as low birth weight in Wistar rats. This study; which was conducted in Bowen University, Iwo, Osun state, Nigeria, in 2013, was carried out to ascertain the effect of maternal ingestion of aspirin on the outcome of pregnancy in Wistar rats, with special reference to newborn birth weight.
Size. The average body length of adult rats is 9 to 11 inches, plus a tail of 7 to 9 inches, according to the American Fancy Rat and Mouse Association. Your pet rat could grow to be up to 20 inches long from nose tip to tail tip.In rare instances, an adult male pet rat might grow to weigh 2 lbs.The rat's body can compress to allow it to access small spaces -- an opening the size of a quarter in your wall or near a pipe will allow a rat to enter your home.our pet rat could grow to be up to 20 inches long from nose tip to tail tip. In rare instances, an adult male pet rat might grow to weigh 2 lbs. The rat's body can compress to allow it to access small spaces -- an opening the size of a quarter in your wall or near a pipe will allow a rat to enter your home.