Moderate

Osmoconformers:

Correct answer: A. Body fluid isotonic to external environment

  • A. Body fluid isotonic to external environment
  • B. Passive loss of water from gills
  • C. Large amount of hypotonic urine contain little salt
  • D. Kidney

Explanation

Animal body fluids are kept isotonic to the external environment, even for marine saltwater environment. These animals thus do not require actively to adjust their internal osmotic state, so are known as osmoconformers.

Last updated

About Homeostasis

Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.

Practise Homeostasis

698 free Homeostasis MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Biology questions like this

Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions