Kidneys are often compared to filters, because they cleanse unwanted waste from both frogs and humans. true or false

In what for do plants utilize nitrogen? why do they need nitrogen?

Which of these is not a nucleotide base found in dna?

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.