An individual eat a hamburger which two system must interact to transfer the nutrient in the hamburger to human muscle tissue

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.