Follicle-stimulating hormone (FSH) is a glycoprotein hormone found in humans and other animals.It is synthesized and secreted by gonadotropes of the anterior pituitary gland, and regulates the development, growth, pubertal maturation, and reproductive processes of the body.SH is a 35.5 kDa glycoprotein heterodimer, consisting of two polypeptide units, alpha and beta. Its structure is similar to those of luteinizing hormone (LH), thyroid-stimulating hormone (TSH), and human chorionic gonadotropin (hCG).
They are formed from broken down animals and plants that died a very long time ago. ] . Fossil fuels are non-renewable [non-renewable: A resource that cannot be replaced when it is used up, such as oil, natural gas or coal. ] because they will run out one day.
Oil is the leading source of global energy consumption. The world consumed over 181 quadrillion BTUs of energy in 2012, which is about 35% of the total global energy consumption. Natural Gas. Natural gas is one of the fastest growing sources of non-renewable energy. In 2012, the world consumed 123 quadrillion BTUs of natural gas, which means that natural gas makes up one quarter of total global energy consumption. That number is expected to rise since natural gas is projected to become the main source of energy in the United States over the next 50 years.