Deoxyribose I think. Because DNA literally means Deoxyribonucleic acid. While RNA stands for ribonucleic acid, which means it contains ribose. hope this helps in the future.
Provides a protective covering
I would say
O sediment flowing down a slope
If a response increases a disturbance, the system is classified as a positive feedback system, while if a response decreases a disturbance, the control system is classified as a negative feedback system. Positive feedback exaggerates the effects of variations from normal. An example of positive feedback would be when the body temperature decreases, a center in the brain initiates physiological changes to increase the body temperature.
As altitude increases, the air pressure decreases.
<span>Air Density varies with Altitude If all other factors remain the same, then air density will decrease as altitude increases.</span>