Question

Which organisms excrete urea as the major nitrogenous waste

Answer 1

Answer:

Mammals such as humans excrete urea, while birds, reptiles, and some terrestrial invertebrates produce uric acid as waste.

Explanation:

Answer 2

Mammals are the organisms that excrete urea as the major nitrogenous waste.

Mammals are a species of vertebrate creatures establishing the class Mammalia and portrayed by the presence of mammary organs which in females produce milk for taking care of (nursing) their young, a neocortex (an area of the mind), hide or hair, and three center ear bones. These attributes recognize them from reptiles and birds, from which they veered in the Carboniferous, north of 300 million years prior. Around 6,400 surviving types of well-evolved creatures have been depicted.