What type of boy do u like ? only girls answer​

Facilitates growth and change in neurons and the migration of neurons to different sites in the brain

What causes darkening of the skin as melanin production increases

The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen