Someone help me answer this question. What are the nuclear reactions in the human body ?

are chemical processes and not nuclear processes. Nuclear reactions do indeed occur in the human body, but the body does not use them. Nuclear reactions can lead to chemical damage, which the body may notice and try to fix.

All living things have very small amounts of carbon-14 in their bodies. This isotope slowly decomposes to nitrogen atoms. I have not seen any study that shows this to be a “harmful” process.

Explanation:

i'm thinking more like energy

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.