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Answer the following question. Birds are uricotelic in nature. Give reason. - Biology

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प्रश्न

Answer the following question.

Birds are uricotelic in nature. Give reason.

टीपा लिहा
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उत्तर

  1. Birds are capable of converting ammonia into uric acid by ‘inosinic acid pathway’ in their liver.
  2. Uric acid is least toxic and hence, it can be retained in the body for some time.
  3. It is least soluble water hence, negligible amount of water is required for its elimination.
  4. This mode of excretion can also help reduce body weight (an adaptation for flight) and those animals which need to conserve more water follow uricotelism.
    Hence, in order to conserve water as an adaptation for flight, birds are uricotelic in nature.
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पाठ 15: Excretion and Osmoregulation - Exercise [पृष्ठ १९१]

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बालभारती Biology [English] Standard 11 Maharashtra State Board
पाठ 15 Excretion and Osmoregulation
Exercise | Q 3. (C) | पृष्ठ १९१

संबंधित प्रश्‍न

Write the functions of Ureter.


The diagram given below is that of a structure present in a human kidney.

Study the same and answer the questions that follow:

1) Name the structure represented in the diagram

2) What is the liquid entering part ‘1’ called?

Name two substances present in this liquid that are reabsorbed in the tubule.

3) What is the fluid that comes to part ‘2’ called?

Name the main nitrogenous waste in it.

4) Mention the three main steps involved in the formation of the fluid mentioned in (iii) above

5) Name the substance which may be present in the fluid in part ‘2’ if a person suffers from Diabetes mellitus.


What does the bladder in our body do?


Fill in the blank. 

.................. produces bile pigments from the heamoglobin of broken RBCs.


Choose the odd one out in the following series:
Proximal convoluted duct, loop of Henle, vein.


Look at the figure given below. It is a section of human kidney as seen from the front.

Which area/part (give its name and number given on the diagram) which contains the following:

(i) Malpighian capsule

(ii) The pyramids

(iii) Freshly collected urine


Give Technical Term: 
The organ in man concerned with maintaining water balance in the body.


Complete the following sentence with appropriate words:

The outer surface of the kidney is ______ while the inner surface is ______.


Choose the correct option.

Which one of the following organisms would spend maximum energy in the production of nitrogenous waste?


Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?


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