Well the surface area changes because there are two dimensional which are flat and 3-d which would be geometric. It is important because if you have to take volume or area you would know why there 2-d and 3-d are important.
hope that helped
'This' is called Diversity.
Diversity occurs when<span> new or different qualities are </span>introduced<span> to a group, which can occur through separation of a group and therefore, be experiencing a different climate, or situations.</span>
Cell wall because it protects the cell membrane.
In a broad range of terrestrial environments, microorganisms are the key decomposers of organic matter and release nutrients in the soil for plant growth as well as CO2 and CH4 into the atmosphere.
<h3>hope it helps.</h3><h3>stay safe healthy and happy.</h3>