How many sugar-phosphate strands exist in each rna molecule?
a. 4
b. 3
c. 1
d. 2

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.

the answer is c a tornado

answerall of the above;