Do you think most americans are in good psychological health? why or why not? how might today’s collective psychological health status be different from that of a few decades ago? what factors do you think account for the differences?

It equals just about 6,300 km per hour each day an week

Ithink the answer is d

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.