Which statement best explains how the cell membrane helps a cell remove waste?
A. The cell membrane surrounds particles and forms a vacuole
around them.
B. Simple sugars enter the cell through a transport protein.
C. Oxygen molecules move into the cell through the layer of
phospholipids
D. Carbon dioxide molecules pass out of the cell through the layer of
phospholipids

the most logical answer would be a

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

micro/nanoscale topography surface exhibits many prominent properties and is extensively employed in biomedical device, microfluidic device and energy device fabrication. additionally, the clinical applications of biomaterials can be largely expanded with of nanostructured surfaces.

the answer is a) a shiprock was formed by igneous process