A wave in a rope travels at 12 meters per second, and the wavelength of the wave is measured at 1.2 meters. Find the frequency of the wave and its period.

The third hammer 8 pounds

Depending on how the continental plates move it can cause a continental scale shift.

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.