I would say B. My reasoning behind this is:
Most models can't incorporate all the details of complex natural phenomena. For example, when measuring distances around the Earth it's convenient to model the Earth as a sphere, but this doesn't incorporate variations in distance because of mountain ranges, valleys and other topological features the traveler must traverse. Incorporating these additional details would make the model too complex for easy use. Since models must be simple enough that you can use them to make predictions, they often leave out some of the details.
Hospolipid bilayer, with some protein, is what makes the cell membrane selectively permeable.
Answer
Cerebral Palsy
Explanation
It is a group of neurological disorder which occurs in infancy or early stages of kids that can permanently affect body movement and coordination of the muscles. This condition is caused by a damage to the a developing brain causing a problem in brain’s ability to control movement including maintaining posture and balance of the body.
Answer:
Buffy coat.
Explanation:
Between the plasma, and red blood cells the platelets, and white blood cells form a thin white layer which is known as Buffy coat following density gradient centrifugation of the blood.
Centrifugation is the process where the distinguish between cell fragments, and cell from the liquid intracellular matrix occurs. Centrifugation is a technique which separates the particles according to their size, density, viscosity and shape with the help of centrifugal force.