8. Explain what makes heredity possible.

In complete sentences describe the energy flow between the sun, the earth, and space.

What happens when the cell copies its chromosomes

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.