How did Dr. John Snow's findings influence the need for clean water?
His findings caused changes to water pollution standards.
His findings influenced the treatment of water runoff.
His findings caused changes in waste and water treatment.
His findings led to the creation of the Environmental Protection Agency.

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.

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

Which is the best example of plant tissue? the answer is d (just took the test)