A particle starts from the origin goes along the x-axis to the point 20,0 then returns along the same line to the point - 20,0 the distance and displacement

A. to determine if humans can explore mars safely

The particles of the gas inside the ball heats up, bouncing off each other and spreading farther apart.hope my answer has you : )

Shania is trying to determine the oldest geologic unit on this map and the reason to why is she unable to do so is that  the units are all the same age.. when there is the same age, there will be no oldest geologic unit and that i cannot be credible.

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.