The natural distribution area of Common hackberry is located in eastern North America. The tree is susceptible to fire damage. The fruits are eaten by birds and other animals.
Memory development. The development of memory in children becomes evident within the first 3 years of a child's life as they show considerable advances in declarative memory. This enhancement continues into adolescence with major developments in short term memory, working memory, long term memory and autobiographical memory.
Most children learn to read at six years old and become competent readers by around age eight. However, many children are actually capable of learning to read much earlier. A few children are ready to start combining letters and identifying words as early as three years old.peech. Children start identifying the sounds around them from the earliest age. They may say their first word as early as 6-months old or as late as a year and a half. By the time a child is two years old she may have a vocabulary of 100 words.