B. Specialized cells allow for different organs to work together to perform a function.
<span>Earth consists of four major layers: the crust, mantle, outer core and inner core. While most of the layers are made of solid material, there are several pieces of evidence suggesting that the outer core is indeed liquid. Density, seismic-wave data and Earth’s magnetic field provide insight into not only the structure but also the composition of Earth’s core</span>
The answer to this question is b, effect.
Answer:
120 g
Explanation:
mass of reactants+ mass of products=one mole of oxygen= 120 g
