Which of these elements is not likely to be found in an organic compound? A. carbon
B. hydrogen
C. nitrogen
D. potassium

Which experiment would most likely contain experimental bias

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

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.