Rock is considered an ecosystem because based on the definition of ecosystem. A rock is happens to be in our environment which makes it part of our ecosystem. 1 person found this useful.
Parathyroid hormone. Parathyroid hormone (PTH), also called parathormone or parathyrin, is a hormone secreted by the parathyroid glands that is important in bone remodeling, which is an ongoing process in which bone tissue is alternately resorbed and rebuilt over time. It essentially increases blood calcium levels.
Parathyroid hormone (PTH), also known as parathormone, is a hormone released by the parathyroid glands. The four parathyroid glands are located in your neck, next to the thyroid gland.These glands are responsible for managing calcium, vitamin D, and phosphorus levels in the blood and bones.arathyroid hormone (PTH), also known as parathormone, is a hormone released by the parathyroid glands. The four parathyroid glands are located in your neck, next to the thyroid gland.