Is it the protein, organelles, or wastes?

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

What molecule does hemoglobin decay into over time

Explain how scientists use geologic time to determine the age of landforms.