Which one of the following characteristics is common both in humans and adult frogs?
Correct answer: D. Ureotelic mode of excretion
- A. Four chambered heart
- B. Internal fertilization
- C. Nucleated RBCs
- D. Ureotelic mode of excretion
Explanation
Excretion of urea is known as ureotelism and the animals which excrete urea are called ureotelic. Ureotelic animals include Ascaris, earthworm (both are ammonotelic and ureotelic), cartilaginous fishes like sharks and sting rays, semiaquatic amphibians such as frogs and toads, aquatic or semiaquatic reptiles like turtles, terrapins and alligators, and man and all other mammals. Urea is less toxic and less soluble in water than ammonia. Hence, it can stay for some time in the body. Amphibian tadpole (e.g., tadpole of frog) excrete ammonia but after metamorphosis frog excretes urea.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Homeostasis questions
The maximum amount of electrolytes and water (70 - 80 %) from the glomerular filtrate is reabsorbed in which part of the nephron?
Which of the following causes an increase in sodium reabsorption in the distal convoluted tubule?
Removal of proximal convoluted tubule from the nephron will result in:
Which one of the following correctly explains the function of a specific part of the human nephron?
Which one of the following statements is correct with respect to kidney function regulation?
Uricotelic mode of excreting nitrogenous wastes is found in: