True or false: Even though copper, gold, silver, and platinum can exist as native metals meaning that they can be found in their free elemental form, most metals have to be mined from a mineral ore that then needs to be processed to isolate the metal.

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.