_________ is the only element capable of forming stable, extended chains of atoms bonded into single, double, or triple bonds. Hydrocarbons containing carbons which are bonded by only single bonds. Hydrocarbons containing at least on Carbon-Carbon bond which is a double bond.
You are asking the question wrong. The name of the number is frequency.
The Calvin Cycle is a stage in photosynthesis
The physical distance that separates them on the chromosome.