G four pairs of species are given, with descriptions of how they interact. Match each system of differential equations with a species pair, and indicate which species is and which is . (a) represents the population. represents the population. (b) represents the population. represents the population. (c) represents the population. represents the population. (d) represents the population. represents the population.

i don't know, but does anyone wanna be friends? i'm doing my homework at 1: 49 in the morning : /

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.

the endomembrane system i think

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.