Question

define excretion and mention the different ways in which animals excrete their waste​

Answer 1

Answer:

Nitrogenous wastes in the body tend to form toxic ammonia, which must be excreted. Mammals such as humans excrete urea, while birds, reptiles, and some terrestrial invertebrates produce uric acid as waste. Uricothelic organisms tend to excrete uric acid waste in the form of a white paste or powder.

Answer 2

Answer:

excretion is a process in which animal remove harmfull substance from body

Explanation:

in small unicellular oragnism and some multicellular organisms i takes place through diffusion

but devloped organisms have special organs like kideny to perform purification