Answer:
Fluorine is a chemical element with symbol F and atomic number 9. Classified as a halogen, Fluorine is a gas at room temperature.
symbols are abbreviations used in chemistry for chemical element
Explanation:
Hormone Signaling. The glands of the endocrine system secrete hormones directly into the extracellular environment. The hormones then diffuse to the bloodstream via capillaries and are transported to the target cells through the circulatory system.
Insulin. Although it is made in the pancreas, insulin is the hormone.
Answer:
The child's father has type O blood.
