Answer:
Defenitely b, fossils, I don't think any of the others are right, But I could be wrong.
It is the nucleus because it stores your DNA
Increasing the cell's volume would reduce the efficiency of the diffusion of materials through the plasma membrane into the cytoplasm of the cell.
On the other hand, increase the surface area and decreasing the volume oft the cell would increase the rate of diffusion across the plasma membrane.
Number one is structural and 2 is behavior
Three is structural
Four is structural
The last one behavior
I had to draw a sodium atom so if i remember correctly there are 11 electrons, 11 protons, and 12 neutrons. Cx Hope I helped.
