Question

Which one of the following situations involves diffusion?
P. supply of oxygen to the cells
Q. supply of glucose to the cells
R. removal of metabolic waste products
(1 Point)
O Only P
Only
O P and R
O All - P. Q R​

Answer 1

Answer:

Mammals such as humans excrete urea, while birds, reptiles, and some terrestrial invertebrates produce uric acid as waste. ... Producing uric acid instead of urea is advantageous because it is less toxic and reduces water loss and the subsequent need for water.