If the galaxy is observed over time, which of the following observations would most strongly suggest that gravitational forces are acting throughout it? A. supernovae explosions B. the expansion of the universe C. the expansion of the galaxy D. the rotation of the galaxy

answer: the answer is option b

Explanation:

answer:

b

Explanation:

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 function of the protein macromolecule is to move things in and out of the cell and transport other molecules in the body. there are many functions of proteins. they are the basic building blocks of living things and are responsible for the growth and repair of body cells and tissues.

explanation: