Which of these describes the level of organization of the digestive system?

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

Aprocedure done under controlled conditions to test a hypothesis is an inquiry.

How do bacteria protect their genetic material and cytoplasm during harsh conditions