11. Circle the letter of where cells get the energy to regenerate ATP. a. ADP
b. phosphates
c. foods like glucose
d. organelles

I think it is c because every cell needs energy to function. Almost all of the energy in the body comes from consumption, and glucose is formed to perform cellular respiration.

The speed of  sound:   sound travels  at different speeds depending on what it istraveling through. of the three mediums (gas, liquid, and solid)  sound waves travel the slowest through  gases, faster  through  liquids, and fastest  through  solids.