Answer:
I believe the answer is B
our thyroid glands plays a main role in a human body. It secretes thyroxine and calcitonin. In which thyroxine help in growth and cellular metabolism and calcitonin helps to regulates calcium concentration in blood . If thyroid gland stops working then there is low level of calcium in our blood, which leads to mental and hormonal disorder. In this way a person's blood calcium level would be affected if his/her thyroid gland stops working.
Answer:
D.)
Explanation:
The periodic table is divided into vertical periods and horizontal groups.
Answer:
Protista, Fungi, Plantae, and Animalia.
Explanation:
