A student is performing a dissection of a brain. The directions in the laboratory manual read "Cut the brain perpendicular to the long axis of the body and divide the brain into superior and inferior portions". What type of section through the
Sent being asked to make?
brain is the student being asked to make

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.

i think that it is plants