Question

to help conserve water, bird kidneys do not produce liquid urine. instead, after a birds kidneys filter waste from its blood, they release the waste as a solid. this solid waste is called uric acid. it is released with the birds feces. birds do not make urine, so they do not need to store urine in their bodies. which body part is absent in birds? a bladder a liver a stomach lungs

Explanation:

The bladder is an organ that stores urine. Since birds do not produce liquid urine, they do not need a bladder to store it. The liver is involved in various metabolic processes like detoxification and producing bile. The stomach is part of the digestive system for breaking down food. The lungs are for gas exchange (taking in oxygen and expelling carbon dioxide). So, based on the function related to urine storage (which birds don't need as they excrete uric acid as a solid), the absent body part is the bladder.

Answer:

A. a bladder