NEET 2021 NCERT Biology Objective Questions,MCQs,PDFs,mock Exam

Evolution Mock Exam-9

Question No:1

Which of the following are homologous organs?

[A] Hand of man, wings of bat
[B] Eyes of man, eyes of squid
[C] Gills of fish, lungs of man
[D] Leaf of moss, frond of fern



Question No:2

Thorn of Bougainvillea and tendril of cucurbita are examples of:

[A] Vestigial organs
[B] Analogous organs
[C] Homologous organs
[D] Retrogressive evolution



Question No:3

Although all mammals whale, dolphin, bat, monkey and horse have some important common characters, but they also show conspicuous differences. This is due to the phenomenon of:

[A] Divergence
[B] Genetic drift
[C] Convergence
[D] Normalization



Question No:4

Which of the following are homologous organs?

[A] Wings insects and bats
[B] Fins of fishes and flippers of whale
[C] Fins of fishes and forearms of human
[D] Forearm of human, bat’s wings and whale’s flippers



Question No:5

Analogous structures are:

[A] Similar in origin and function
[B] Different in origin and function
[C] Different in origin but similar in function
[D] Similar in origin but different in function



Question No:6

Analogy is found between:

[A] Wings of birds and bats
[B] Wings of bat and butterfly
[C] Hands of man and flippers of whale
[D] Hands of man and forelimbs of horse



Question No:7

Which pair of organs are analogous in nature?

[A] Gill of fish and gill of prawn
[B] Ear of frog and ear of rabbit
[C] Arm of man and limb of horse
[D] Wing of bat and flipper of seal



Question No:8

Which of the following pairs are correct?

[A] Bat wing and insect wing are analogous
[B] Seal flippers and bat paw are homologous
[C] Insect wing and bird wing are homologous
[D] Thorn of Bougainvillea and tendril of pea are analogous



Question No:9

Which type of evolution is shown by the wings of bats, mosquitoes and pigeons?

[A] Divergent
[B] Atavism
[C] Convergent
[D] Vestigial organs



Question No:10

The most direct evidence of organic evolution is:

[A] Fossils
[B] Embryos
[C] Morphology
[D] Vestigial organs



Question No:11

The study fossils as evidence of evolution is called:

[A] Anatomy
[B] Embryology
[C] Palaeontology
[D] Biogeography



Question No:12

The fossils are preserved in:

[A] Sedimentary rocks
[B] Igneous rocks
[C] Metamorphic rocks
[D] None of these



Question No:13

Fossil X is older than fossil Y because:

[A] Fossil Y was found in deeper sedimentation.
[B] Fossil X was found in deeper sedimentation.
[C] Fossil Y has some vestigial organs functional in X.
[D] Fossil Y has homologous and analogous organs of X.



Question No:14

Our best estimate for the age of Earth, which is billion years, is supported by:

[A] Gradualism
[B] Big bang theory
[C] Assumption of uniformitarianism
[D] Radioactive dating of the oldest rocks found



Question No:15

Correct order is:

[A] Palaeozoic —> Mesozoic —> Coenozoic
[B] Mesozoic —> Archaeozoic —> Proterozoic
[C] Palaeozoic —> Archaeozoic —> Coenozoic
[D] Archaeozoic —> Palaeozoic —> Proterozoic