Please Help Now Bob (m= 60 kg), Archie (m = 65 kg), and Reggie (m= 70 kg), all decide to run up a
flight of stairs with a height of 4 m at a constant speed. If all three achieve this
task in 3.5 s, who generates the most power?

Sublimation- which change of state is shown in model

How is it possible that phylogenies based on sequences from nuclear genomes and organellar genomes (i.e., chloroplasts and mitochondria) from the same group of species yield phylogenetic trees with different branching orders?   answer :   the genome of the endosymbiont is more closely related to members of the group in which it originally evolved, while the nuclear genome of the engulfing organism has its own evolutionary trajectory.