WebThe kidneys can regulate water levels in the body; they conserve water if you are dehydrated, and they can make urine more dilute to expel excess water if necessary. Water is lost through the skin through evaporation from the skin surface without overt sweating and from air expelled from the lungs. WebApr 9, 2024 · Describe the way in which flame cells and nephridia in worms perform excretory functions and maintain osmotic balance; ... that divided the metabolic needs of the body, individual organs evolved to perform the excretory function. Planaria are flatworms that live in fresh water. Their excretory system consists of two tubules …
Flatworm Definition & Meaning Dictionary.com
WebAug 13, 2024 · Water passively follows the sodium. To restore balance, the sodium-potassium pump transfers sodium back to the extracellular fluid and water follows. Every cycle of the sodium-potassium pump involves the movement of three sodium ions out of a cell, in exchange for two potassium ions into a cell. WebWater and electrolytes are reabsorbed when these organisms are faced with low-water environments, and uric acid is excreted as a thick paste or powder. Not dissolving wastes in water helps these organisms … shard at dusk
22.3. Excretion Systems – Concepts of Biology – 1st Canadian Edition
Webthem maintain proper water bal-ance. Tell them that water seeps into Dugesia, the flatworm they will study on the next page, like it seeps into a leaky boat. Ask them to suggest … WebDescribe how flatworms maintain water balance. 6. Why do freshwater fishes typically have very dilute urine and marine fishes have very concentrated urine? For Questions 7–8, write the letter of the correct answer on the line at the left. 7. Marine organisms tend to lose water to their surroundings because WebThe kidneys produce urine and this helps maintain water balance. The urine is taken from the kidneys to the bladder by the ureters. The bladder stores the urine until it is convenient to expel it ... pool decks near me