Anyone who has washed a car knows that bird wastes are different from mammal feces and urine.This is because
A)birds lack kidneys.
B)birds mainly eat berries and insects.
C)birds excrete ammonia.
D)birds produce urine with urea just as in mammals but they don't drink much water so it is more concentrated.
E)a bird's waste is uric acid with most water removed.

Question

Quizplus · Accepted Answer

Birds have a unique way of excreting waste, with their feces and urine combined into a semi-solid substance that is mostly composed of uric acid. This substance contains very little water, allowing birds to conserve water in their bodies. This is in contrast to mammal waste, which is typically composed of solid feces and liquid urine.

Anyone Who Has Washed a Car Knows That Bird Wastes