It is warm up, If Steve takes five minutes to exercise slowly before running, this is an example of a 3)warm-up
It originated from ancient China.
Answer: Organelle
Explanation: A nucleus is an organelle that functions as the cell's brain, regulating its production of proteins and genetic material. The nucleus governs the cell's production of these substances by means of its deoxyribonucleic acid or DNA. ... It contains information that determines the cell's purpose and function.