Describe how the concentration of circle molecules leads to a change in gene expression (creation of triangle molecules) when the density of bacteria gets high enough.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

her affection for her parents makes her an especially sympathetic character.