Per favore aiutami, non so come fare il mio lavoro scolastico, qualcuno può aiutarmi perché è davvero difficile

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

Which of the following are the functions of the integumentary system? yadda-yadda, the 1st answer is the brainliest. : )

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks