The symbol for USD can be written $. The Canadian Dollar is divided into 100 cents. The United States Dollar is divided into 100 cents. The exchange rate for the Canadian Dollar was last updated on October 13, 2015 from The International Monetary Fund.
Although brain development is subject to significant individual variation, most experts suggest that the brain is fully developed by age 25.
in the brain the neurons are there at birth as well as some synapses as the neurons mature more and more synapses are made at birth the number of synapses per neuron is 2500 but by age two or three it s about 15000 per neuron the brain eliminates connections that are seldom or never used which is a normal part of brain development