Which light-sensitive vitamin is abundant in milk?

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

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.

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?