Question Discussion & Solution

The correct answer is four.

Key Points

• Crocodiles have four-chamber hearts. All reptiles have incomplete four-chamber hearts except Crocodiles.

Additional Information

• Endotherm or Homeotherm have well developed four-chamber heart. Examples:- Birds and mammals. 
  • They can maintain constant body temperature.
• Poikilotherm or Ectotherm do not have a well-developed heart, so they can not maintain constant body temperature. Examples:- Amphibians and reptiles.
• Fishes have a two-chamber heart.
• Amphibians have three-chamber heart.
• The cockroach has thirteen chamber hearts.

Eagle, Bird, Crocodile

All Eagle is the Bird and Crocodile is the reptile. 

So,  Venn diagram given bellow-

Hence, option 4 is the correct answer.

Here the pattern is,

Hence, B9 is the correct answer.

Total = Top + Bottom – 1

25 = 12 + Bottom – 1

25 – 11 = Bottom

Bottom = 14^th

The correct answer is Governor.

• Appointment of District Judge (Article - 233):
  • District Judges' appointments, posting, and promotions are being done by Governor in consultation with the respective high court.

Key Points

• Eligibility-
  • He/She is not serving the government of India or the state government.
  • He/She will have at least 7 years experience of working as a lawyer.
  • High Court has recommended his/her for appointment as Judge.