The weather map on the evening news shows that a high pressure system will be centered over Tampa, Florida tomorrow. What kind of weather can the people in Tampa most likely expect?

If there was no gravity then their would be no downword force on the football to have it return the the grownd, and if there was no friction (mainly air friction) then there would be no opposing force the stop the ball from moving through the air allowing the ball to travle ∞.

An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to move. 

That big glowy thing in the sky is called the sun

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.