Symptoms of ADHD mimic PTSD and contributes to the incidence of misdiagnosis. True
False

Help please

Variety of living organisms; includes genetic, species, and ecological types.

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

What causes darkening of the skin as melanin production increases