Low calcium levels in the blood can be raised by dissolving bone tissue. Which cell would most likely be involved in this process?

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.

How many types of rock can form from the rock cycle

The primary organisms involved in the process bacteria and fungi.