How does your brain changes when you are confused and having trouble with a problem

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

i think it is d. objects resist changes in their state of motion.

i think the answer is composed of atoms