Multiple choice

Trimethylamine oxide is excreted by

  1. fresh water fishes

  2. amphibians

  3. marine teleosts

  4. some molluscs and marine teleosts

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Marine teleosts (bony fish) excrete trimethylamine oxide (TMAO) as a nitrogenous waste product to help maintain osmotic balance in their saline environment.