1
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action?

(a) Darwin’s Finches of Galapagos islands.
(b) Herbicide resistant weeds.
(c) Drug resistant eukaryotes.
(d) Man-created breeds of domesticated animals like dogs.
A
(b), (c) and (d)
B
only (a)
C
(a) and (c)
D
only (d)
2
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5kg die. Which type of selection process is taking place?
A
Disruptive Selection
B
Cyclical Selection
C
Directional Selection
D
Stabilizing Selection
3
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
Match the hominids with their correct brain size :
(a) Homo habilis (i) 900 cc
(b) Homo neanderthalensis (ii) 1350 cc
(c) Homo erectus (iii) 650-800 cc
(d) Homo sapiens (iv) 1400 cc

Select the correct option.
A
(a) (b) (c) (d)
(iii) (iv) (i) (ii)
B
(a) (b) (c) (d)
(iv) (iii) (i) (ii)
C
(a) (b) (c) (d)
(iii) (i) (iv) (ii)
D
(a) (b) (c) (d)
(iii) (ii) (i) (iv)
4
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
Variations caused by mutation, as proposed by Hugo de Vries, are :
A
small and directional
B
small and directionless
C
random and directional
D
random and directionless
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