Question

1. the body must maintain a balance between water(h2o) and solutes (glucose, san, urea) in body cells. to do this the nervous, ____________ and ____________ systems work together to determine how to filter and expel (get rid of) or absorb (keep) these materials.

a. respiratory, digestive
b. circulatory, excretory
c. excretory, immune
d. circulatory, respiratory

1. at the organ level, the __________ is/are responsible for filtering the blood which is transporting water, glucose, salts, and urea. the blood is then filtered and waste is removed. materials the body needs(is low on) are reabsorbed and carried in the blood back throughout the body to the cells.

a. heart
b. lungs
c. bladder
d. kidneys

Explanation:

1. The circulatory system transports substances, and the excretory system filters and expels waste. These two systems, along with the nervous system, work together to maintain the balance of water and solutes in body cells.
2. The kidneys are the organs responsible for filtering the blood. They remove waste products like urea and reabsorb materials the body needs, such as water, glucose, and salts. The heart pumps blood, the lungs are involved in gas exchange, and the bladder stores urine.

Answer:

1. B. Circulatory, excretory
2. D. Kidneys