Most laxatives (except saline laxatives) may be used to provide relief: 1  during pregnancy. 2  for a few days after giving birth. 3  during preparation for examination or surgery.  for constipation of bedfast 1  patients. for constipation caused by other medicines.  following surgery when straining should be avoided.
Grasslands of BC :: Ecosystems. Energy Flow. Refer to the yellow arrows in the diagram to help you understand the way that energy moves through an ecosystem. Energy enters an ecosystem in the form of heat from the sun. This energy is absorbed by organisms such as plants, and is then converted to other forms of energy and stored. Once stored, energy is used for necessary life functions, such as growth, movement and reproduction.
Energy also enters the ecosystem from the interior of the Earth. It is usually in the form of heat, not the electromagnetic radiation from the Sun. There are finite amounts of carbon (C), nitrogen (N), and oxygen (O) on the planet. Those elements are recycled through the planet's resources.he carbon does cycle through the biosphere in different ways. When wood is burnt it forms carbon dioxide. Carbon dioxide is then used by plants for photosynthesis.