Pulling one of the balls away from the other. to pull a ball away, click on the ball and drag it. what happens to the force arrows between the two balls? what does this mean in terms of gravity?

On Plato.

When the distance between the balls increases, the size of the arrows decreases. This shows that the gravitational pull between the balls also decreases.

Explanation:

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.