What instruments is best used for observing a single-celled organism like the one seen here?

Which is an example of a population?

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.

Differentiation of cells changes the nucleic information. true false