The Frog one.
Explanation:
EW.... but yeah the rest aren't sexual reproduction
Nitrogenous waste is the waste that is <span>excreted by bony fishes, by mammals, and by insects.
</span>Nitrogenous waste products are urea, uric acid or ammonia. <span>Fish excrete nitrogenous waste as </span>ammonia and <span>mammals produce </span>primarily urea<span> (sometime ammonia) which is excreted in urine.</span>
The first option is the correct answer, Troposphere.