Help me please

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.

How do you date a sample of rock that you suspect as being one of the earliest on earth

Make a claim about the factors that cause inherited genetic variations within populations. also make a claim about the effects of mutations.