Answer:
No
In RNA their arn't any base pairs but instead there are simply one base pairs, so any cytosine and guanine molecule are not related to each other at all, and thereby they don't have to be the same amounts.
Environmental barriers to physical activity include both external/physical factors and social factors that may make it harder or easier for you to exercise.
Fungi are classified based upon how they reproduce. The rest of the factors do not include anything of their classification.
The term pioneer is used to describe the species that first colonize new habituate created by disturbance