What is the difference between a manifest function and a latent function?

What is an endocrine function? (apex) a. esophageal glands release mucus into the esophagus b. salivary glands release saliva into mouth c. swear glands release sweat to the skin d. the pineal gland releases melatonin into the bloodstream

What is the cause hearing loss in human being

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer