What happens during s-phase of the cell cycle? a) cell size doubles b) dna replicates c) chromosomes form d) cell prepares to divide

B) DNA replicates. The synthesis (S) phase is characterized by DNA replication

the correct answer would be 6 feet.

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.