pls help look at the above image and answer the questions thx if you do not know all the questions you can answer the one you know

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.

What must be done to breed dogs for a partical trait

If a grape were placed in a hypertonic solution what would happen and why?