Amongst given parts of human excretory system how many occur(s) in pairs?
Urethra, Kidney, Urinary bladder, Ureter

Q. Draw a diagram of human excretory system and label the following parts : Kidney, ureter, urinary bladder and urethra.

Q. Excretory system of humans consists of _________ kidney(s), __________ ureter(s), one urinary bladder, and one urethra.

Q.

Question 34
Choose the correct path of urine in our body

(a) $kidney\to ureter\to urethra\to urinarybladder$
(b) $kidney\to urinarybladder\to urethra\to ureter$
(c) $kidney\to ureters\to urinarybladder\to urethra$
(d) $urinarybladder\to kidney\to ureter\to urethra$

Q. Draw a well-labelled diagram of a human excretory system. Write the functions of
(a) Kidney
(b) Ureter
(c) Urinary bladder

Q. (a) Draw a diagram of excretory system in human beings and label on it:
Aorta, vena cava, urinary bladder, urethra.
​(b) List two vital functions of the kidney.