1
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Evolution of human appears parallel to the progressive development of brain and language skills. As such, the evolution of individual species in the sequence of their appearance is:

A

Ramapithecus → Homo habilis → Homo erectus → Neanderthal → Homo sapiens

B

Homo sapiens → Ramapithecus → Homo habilis → Neanderthal → Homo erectus

C

Homo habilis → Homo erectus → Ramapithecus → Neanderthal → Homo sapiens

D

Neanderthal → Ramapithecus → Homo habilis → Homo erectus → Homo sapiens

2
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

The flightless bird with forelimbs modified as paddle-like structures suited for swimming is known as:

A

Struthio

B

Neophron

C

Aptenodytes

D

Psittacula

3
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Choose the correct statements regarding population interactions between two species.

A. In both parasitism and commensalism, only one species benefits and the other species is harmed.

B. Both species benefit in mutualism.

C. Both species benefit in commensalism.

D. In parasitism, only one species benefits and the other species is harmed.

E. In amensalism, one species is harmed and the other is unaffected.

Choose the correct answer from the options given below:

A

B and E only

B

A and B only

C

B, D and E only

D

A and D only

4
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Select the reagents that reduce nitriles to primary amines.

A. (i) $\mathrm{LiAlH}_4$; (ii) $\mathrm{H}_2 \mathrm{O}$

B. $\mathrm{Sn}+\mathrm{HCl}$

C. $\mathrm{H}_2 / \mathrm{Ni}$

D. $\mathrm{Na}(\mathrm{Hg}) / \mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}$

E. $\mathrm{Br}_2 / \mathrm{aq} . \mathrm{NaOH}$

Choose the correct answer from the options given below.

A

B, D and E only

B

A, C and D only

C

A, D and E only

D

A, B and C only