What happens to the current if the resistance becomes 1/4 of the original

A. to determine if humans can explore mars safely

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.

The answer is: c. from underground

Idon't get it? what do you mean by playing 17 hours on the wii