3546: With reference to the evolution of living organisms, which one of the following sequences is correct?

(a) Salamander - Python - Kangaroo
(b) Octopus - Dolphin - Shark
(c) Pangolin - Tortoise - Hawk
(d) Frog - Crab - Prawn
3547: Avinash is Ravi's eldest brother. Ravi is younger to Ajay. Ravi and Ajay are not brothers. Which of the following statements is definitely true?

(a) Ajay is younger to Avinash

(b) Avinash is younger to Ajay

(c) Ajay is younger to Ravi

(d) None of the above
3548: Consider the following statements :
AIDS is transmitted

I. by sexual intercourse.
II. by blood transfusion.
III. by mosquitoes and other blood sucking insects.
IV. across the placenta.

Of these statements
(a) I, II and III are correct
(b) I, II and IV are correct
(c) I, II and IV are correct
(d) I and III are correct
3549: Which one of the following is in the correct sequential order in which these appeared under simulated primitive earth condition ?

(a) Methane, Hydrogen cyanide, nitriles, aminoacids

(b) Hydrogen cyanide, methane, nitriles, aminoacids

(c) Aminoacids, nitriles. Hydrogen cyanide, methane

(d) Nitriles, aminoacids, methane, Hydrogen cyanide
3550: In the context of bilateral trade negotiations between India and European Union, what is the difference between European Commission and European Council ?

1. European Commission represents the EU in trade negotiations whereas European Council participates in the legislation of matters pertaining to economic policies of the European Union.

2. European Commission comprises the Heads of State or government of member countries whereas the European Council comprises of the persons nominated by European Parliament.

Which of the statements given above is/are correct ?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2