Assume that the body has been sectioned along three planes: (1) a median plane, (2) a frontal plane, and (3) a transverse plane made at the level of each of the organs listed below. Which organs would be visible in only one or two of these three cases?a. urinary bladder,b. brain,c. lungs,d. kidneys,e. small intestine,f. heart.

Which organ systems directly allow waste materials to be passed out of the body?

Of all your systems, the integumentary, respiratory, and digestive most regularly experience infection from microorganisms. Which answer best describes why that may be the case?

The digestive and respiratory systems are both responsible for taking in useful molecules into the body. When taken in by these systems, where do the molecules go first?

Which system is the least responsible for keeping you alive on a day-to-day basis?

Distinguish between the endocrine system and the nervous system.

Which two systems allow materials to move from one region of the body to another?