Which statement is correct about transitional epithelium?

Birds excrete nitrogenous waste in the form of

Which of the following controls bladder pressure?

Hemodialysis consists of several tubes having semipermeable lining suspended in tank having fluid that has _________.

How does the following organism get rid of its nitrogenous wastes?

Which of the following forms the lining of kidney tubules and ducts of salivaly glands?

​Given below is the diagram of a nephron. Select the option with the correct labelling for a, b, c and d parts.

​Identify the correct sequential order of the excretory system in human beings.​