Here are some quick tips on how to distinguish classic crystal from plain glass. 1  Hold up a glass to the light. 2  If the glass acts as a prism and you see a rainbow you are holding crystal.
Growth is a very complex process, and requires the coordinated action of several hormones. The major role of growth hormone in stimulating body growth is to stimulate the liver and other tissues to secrete IGF-I. IGF-I stimulates proliferation of chondrocytes (cartilage cells), resulting in bone growth.
Hormones control various cellular activities including growth; development; reproduction; energy use and storage; and water and electrolyte balance. Both the endocrine system and the nervous system are responsible for maintaining homeostasis in the body.he endocrine system regulates vital processes in the body including growth, metabolism, and sexual development. This system is comprised of several major endocrine glands. These glands secrete hormones into the blood.