Which of the following best defines conduction?
the movement of energy by waves that travel through space
the movement of a hot liquid of gas from one place to another, carrying energy
with it
the movement of energy yom one substance to another by direct contact

The movement of energy from 1 to another without moving the objects themselves. When I sit on the couch & the couch is 69 degrees Fahrenheit, I am 98.6 degrees Fahrenheit, I will transfer heat just due to the fact that I am a different temperature. The substances will heat up due to my rump and it will go along the couch. We will eventually reach a point of equilibrium. Let us say 86.53 degrees.

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.