Which of the following statements is true? no energy transformations are ever 100 percent efficient. friction between moving parts causes the loss of energy as heat. photosynthesis converts light energy into chemical energy. all of the above.

all of the above

Explanation:

All of the above im pretty sure

it's     c       this is a cell (b) with a nucleus (c) containing dna (a). the dna is organized into chromosomes (d). a section of the chromosome that codes for a trait is called a gene (e).