Cell-mediated immunity i suppose
Lakes are large and loudish, whereas ponds are generally a lot more quiet and steady and small.
I think you meant element?
Then it is Krypton because it is in period 4 in group 18, the noble gases.
<span>In general, Eukaryotic cells are a fair bit larger than Prokaryotic cells (if you look at them under the microscope, you can generally see details inside Eukaryotic cells, whereas Prokaryotes are just tiny dots).
</span>Prokaryotic cells are 0.2-2 uM (micrometers or 10^-6)
Eukaryotic cells are 10-100 uM
Give or take, eukaryotic cells are 50-100 times bigger <span>than prokaryotic cells.</span>
