Question

Do Marine fish excrete ammonia or urea?

Answer 1

Explanation:

1. Urea is generally secreted by ureotelic animals i.e., marine fishes.
2. Usually, marine fishes live in salty water which is highly hypertonic in nature to them.
3. Ammonia is usually released by invertebrate marine fishes, so they are amonotelic by nature.
4. Human is the best example of ureotelic animals.

Final answer: Yes, Marine fish excrete urea.