EASY
Earn 100

(Uric acid/Amino acid) is excretory substance in pila.

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Important Questions on Excretion in Organisms

MEDIUM

Match List I and List II

  List I   List II
A Taenia I Nephridia
B Paramoecium II Contractile vacuole
C Periplaneta III Flame cells
D Pheretima IV Uricose gland

Choose the correct answer from the options given below: 

MEDIUM
Why is it necessary to excrete waste products?
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Which of the following is a form of excretion by animals.
MEDIUM
What is meant by excretion? What are various waste material excreted from human body? Why is it necessary to excrete waste products?
EASY
Antennal glands of crustaceans are meant for:
MEDIUM
How do plants excrete waste products?
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Name any two wastes produced by the body, other than urine.
MEDIUM
What is the percentage composition of urine?
MEDIUM
Loss of water from body occurs by all of the following except
EASY

Solenocytes are the main excretory structures in

EASY

Choose the right appropriate word from the given bracket and fill in the blanks.

We expelled out the waste from our body in the form of urine, sweat, and _____ (stool/garbage).

MEDIUM
Read the following (A – D) four statements:

(A) Some amount of urea may be retained in the kidney matrix of mammals to maintain a desired osmolarity.
(B) Protonephridia are excretory structures in rotifers
(C) In prawns, malpighian tubules help in the removal of nitrogenous wastes and osmoregulation.
(D) In human beings, kidneys are situated between the levels of last thoracic and third lumber vertebra close to the ventral inner wall of the abdominal cavity

How many of the above statements are correct?
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Contractile vacuole is absent in marine and parasitic protozoa because:
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Which of these is not a product of excretion?
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Urine contains harmful waste products of the body. 
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Choose the odd one. Give the reason for your choice: