Kepler fine-tuned copernicus’ heliocentric model by

The human body is compared to a fine-tuned machine because a fine-tuned machine has many parts that work together so the machine can do what it is supposed to do. In the body, organ systems work together so the body can  perform tasks like walking, running, and digesting food.

Explanation:

it refers to race, i am pretty sure this was a popular term in nazi germany or something.

b.

one company controls all the means of production of a product.

~coco