NCERT Exemplar Solutions Class 7 Science Solutions for Transportation in Animals and Plants - Exercise in Chapter 11 - Transportation in Animals and Plants

Question 3 Transportation in Animals and Plants - Exercise

The muscular tube through which stored urine is passed out of the body is called –

(a) kidney

(b) ureter

(c) urethra

(d) urinary bladder


The answer is (c) urethra


Waste which is present in the blood has to be removed from the body. This is done by the blood capillaries in the kidneys. The wastes dissolved in water are removed as urine. From the kidneys, the urine goes into the urinary bladder through tube-like ureters. It is stored in the bladder and is passed out through the urinary opening at the end of a muscular tube called the urethra . The kidneys, ureters, bladder and urethra form the excretory system.

Video transcript
"hello everyone welcome to later this is priya and let us look into the question of tourists if an atom contains one electron and one proton will it carry any charge are not so here in this atom there is a number of one proton and one electron so proton is positively charged and electron is negatively charged and the both charges are equal so this makes the atom as a neutrally charged so neutrally means there is no charge there is no charge okay so the atom which has one proton and one electron because of both the charges are equal that resultant atom will not have any charge so it it is neutralized so it has no charge we call that state as neutral so hope you understand this video if you like my video please subscribe to leader channel and if you have any doubts you can keep a message in comment box thank you"
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