Which of the following is/are TRUE about heat transfer? w. heat energy can never be transferred.

x. heat flows from cooler to hotter object.

y. heat travels from hotter to cooler object.

z. heat can transfer through convection, conduction, and radiation

Group of answer choices

x and y

y and z

w and z

w and x

nanotechnology is a powerful tool in biomaterials research as it creates numerous possibilities for the engineering of functional molecules. nano-bio refers to projected ability to incorporate biomimicry into various materials at nanoscale.  

i believe the answer is a.

no starving yourself won't it will make you lose more weight what you need to do is find out what foods make you gain weight like bread and meats with fat on

4d^55s^1 ( third choice)