A compound microscope has multiple lenses: the objective lens (typically 4x, 10x, 40x or 100x) is compounded (multiplied) by the eyepiece lens (typically 10x) to obtain a high magnification of 40x, 100x, 400x and 1000x. Higher magnification is achieved by using two lenses rather than just a single magnifying lens.
Answer:
b the same number of atoms are in both the products and the reactants
Explanation:
Mutualism
predation
commensalism
mutualism
mutualism
mutualism
predation
competition
mutualism
commensalism
commensalism (?)
parasitism