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.
The average life span of rats is 2â3 years; mice 1â2 years. The average body length of adult rats is 9â11 inches; mice 3â4 inches; with an average tail length of 7â9 inches in rats and 3â4 inches in mice. The average body weight for rats is 350â450 grams for a female, 450â650 grams for a male; mice 30 grams each sex.