Which of the following best describes transverse waves

The answer is:

perpendicular to the direction of wave motion.

The explanation:

The transverse waves have oscillations which occur at a right angle on the direction of the transferred energy. For example when two girls catch a rope from each side, and start to shake it. here, the wave direction is forward to one of the two girls but the it moves right and left so, the wave moves perpendicular to the direction of the motion of the wave.

i would think it's food chain

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.