According to the principle of competitive exclusion, two species competing for the same limiting resource cannot coexist at constant population values. true false

True.

If two animals for example live in the same territory and feed on the same thing. There will be a competition withing the two predators and one of them will be more successful and increase in population while the other one will decrease.

Hope it helped,

BioTeacher101

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.