Which of the following is an example of a positive feedback? a.a low level of oxygen in the blood triggers production of red blood cells, which transport oxygen.b. an increase in blood sugar level stimulates the pancreas to secrete insulin, which lowers blood sugar level.c.a tear in the lining of a blood vessel triggers the accumulation of blood platelets, which cause blood to clot.

What molecule does hemoglobin decay into over time

How do disease caused by bacteria and disease caused by viruses react to antibiotics?

Dr. arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode. it measures the volume of the sound that occurs at the minimum pressure at which the explosion will occur. it then increases the pressure and measures the volume of the explosions that occur. what kind of investigation is the scientist conducting?