Choose all the right answers. What happens when the energy of a machine is transformed into heat?
The energy is destroyed
The energy can always be used for additional work
The energy usually cannot be recovered
The energy usually cannot do any further work

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing