Describe two intrinsic feature of rna that can allow it to self regulate activities (independent of proteins enzymes etc.).

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.

dynamic equilibrium is the answer.

the ratio of the conjugate base to the acid required to attain the desired ph.