Devise a simple experiment to find out what happens to the mass of a solid catalyst during a reaction. *
(3 Points)

prokaryotic cells do not have a nucleus in which the dna is stored in, it floats freely inside the cell.

eukaryote cells do have a nucleus in which the dna is stored in.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

i believe your answer would be c.. : )

the answer is d p: cell, q: organ, r: organ system, s: tissue