Answer:
When the calcium level is high in the bloodstream, the thyroid gland releases calcitonin. Calcitonin slows down the activity of the osteoclasts found in bone. This decreases blood calcium levels. When calcium levels decrease, this stimulates the parathyroid gland to release parathyroid hormone.
Somebody whose parathyroid is not functioning properly might suffer from kidney stones or osteoporosis, among other symptoms.
Hope that helped you.
A. Most recent period of the Cenozoic era.
Answer:
A. Coevolution
Explanation:
Coevolution occurs when two species/organisms reciprocally affect the evolution of one another. An example is the coevolution is flowering plants and associated pollinators (e.g., bees, birds, and other insect species). Moths benefit form nectar and orchids benefit from pollinaton.
