What is the difference between diffusion and facilitated diffusion

The use of logic making empirical observations and performing dissections were all part of the scientific studies by

Which statement describes an endocrine function rather than an exocrine function? a. salivary glands release saliva into the mouth. b. sweat glands release sweat onto the skin c. the pineal gland releases melatonin into the blood. d. esophageal glands release mucus into the esophagus.

The body of water found at number 4 on the map above is the