How does segmentation enhance annelid locomotion?
segmentation creates repeating body structures so the entire organism functions in synchrony.
segmentation allows specialization of different body regions.
neural segmentation allows annelids to localize sensations.
muscle contractions can be localized to specific regions of the body to coordinate movement.

what subject is this

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

2%? i tried finding the exact sorry if it's not 100% correct ; -;