Which of the following type of nephrons are prominently present in the desert mammals?

Is the nephric filtrate present in which segment of the renal tubule is isotonic to plasma?

Which of the following is the main enzyme in the ornithine cycle?

Which of the following is not a feature of a counter-current mechanism?

Which of the following are the excretory structures of crustaceans?

What is the percentage of urea present in the urine?

What is the significance of the porous nature of the cellophane membrane?

Which of the following is not an adaptation of kangaroo rat?