If you are riding your bike and hit a curb, you would stop suddenly. Lets say that you were going 25 m/s when you hit the curb and it took you only 2.25 seconds to stop after hitting the curb. What was your deceleration?

Uncle grandma

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.