Explain the similarities and differences that exist between extinct species and humans.

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.

Which statement best compares aerobic and anaerobic respiration

Explain why scientists use the word dominant for certain traits.