Imprinting is a type of behavior a. inherited b. learned c. reflex d. instinct

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.

Natural resources are any materials that humans obtain from the earth to meet our wants and needs.

Nucleic acids offer variability because they contain alternate forms of genes called .