Changes in stool color alone do not cause symptoms. The underlying cause of the change in stool color, texture, or form is responsible for any symptoms. Bowel movements are usually light to dark brown in color, and there is moderate variation among individuals with respect to stool color, quantity and form.
Plants in the Twilight Zone As the amount of light decreases, the size and complexity of plant life also decreases. So whereas there may be flowering plants growing in the entrance zone, the twilight zone is typically marked by mosses and ferns.
Elm Insects. Some insects from the order Homoptera, including aphids, feed on elm trees. The elm (Ulmus) makes an ideal shade tree in Sunset's Climate Zones 2a through 9 and 14 through 21. The elm complements any yard with its showy oval leaves that turn yellow in the fall.