Ascience class is checking to see how much life exists in local streams. one of the students records that 20 amoeba were found in the first sample of water. what is the student doing?

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

Acell in the human nervous system whose primary function is to form myelin and the blood-brain barrier, respond to injury, remove debris, and enhance learning and memory is called a(n) cell.

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale