The atomic mass of an atom is equal to
the total number of its proton
the total number of its protons neutrons and electrons
the total number of its protons and neutrons
the total number of its electrons
the total number of its nuetrons

Biology 1c cumulative exam i need awsners

What is an endocrine function? (apex) a.esophageal glands release mucus into the esophagus b.salivary glands release saliva into mouth c.swear glands release sweat to the skin d.the pineal gland releases melatonin into the bloodstream

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from