CBSE Class 12 Biology Evolution Worksheet Set B

Read and download free pdf of CBSE Class 12 Biology Evolution Worksheet Set B. Students and teachers of Class 12 Biology can get free printable Worksheets for Class 12 Biology in PDF format prepared as per the latest syllabus and examination pattern in your schools. Standard 12 students should practice questions and answers given here for Biology in Grade 12 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 12 Biology Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems provided here with solutions on daily basis to get more score in school exams and tests

Evolution Class 12 Biology Worksheet Pdf

Class 12 Biology students should refer to the following printable worksheet in Pdf for Evolution in standard 12. This test paper with questions and answers for Grade 12 Biology will be very useful for exams and help you to score good marks

Class 12 Biology Worksheet for Evolution

Evolution MCQ Questions with Answers Class 12 Biology

Question- Find the odd one out w.r.t. evolution

(1) Seal’s flipper

(2) Bat’s wing

(3) Horse’s foot

(4) Butterfly’s wings
Answer (4)


Question- In 1938, a coelacanth was found in

(1) South America

(2) South Africa

(3) Australia

(4) England
Answer (2)


Question- Fossils discovered in Java in 1891 belonged to

(1) Homo habilis

(2) Neanderthal man

(3) Homo erectus

(4) Ramapithecus
Answer (3)


Question-Which of the following is not vestigeal organ in human beings?

(1) Rudimentary ear muscles and third molars (wisdom teeth), body hair

(2) Coccygeal tail vertebrae and scalp muscles

(3) Vermiform appendix and nictitating membrane of the eye

(4) Ear pinna, patella, olecranon process
Answer (4)


Question-Which of the following is a vestigial organ?

(1) Vermiform appendix

(2) Atlas

(3) Premolars

(4) Incisors
Answer (1)


Question- Find the odd one out related to evolution

(1) Vertebrate hearts

(2) Vertebrate brains

(3) Wings of butterfly and of birds

(4) Forelimbs of mammals
Answer (3)


Question-Which of the following is not a vestigial organ?

(1) Scalp hair

(2) Epiglottis

(3) Vermiform appendix

(4) Wisdom tooth
Answer (2)


Question-The origin of seeds in the land plants was achieved about 345 million years ago, in lineages recognised as ancestral to all more advanced vascular plants in

(1) Rhynia

(2) Tracheophyte ancestor

(3) Seed ferns

(4) Conifers
Answer (3)


Question-The rate of appearance of new life forms is linked to their

(1) Acquired traits

(2) Nonheritable characters

(3) Life span

(4) Cranial capacities
Answer (3)


Question-Evolutionary process, giving rise to new species adapted to new habitats and ways of life, is called as adaptive radiation, for example

(1) Darwin’s Finches in Galapagos Islands

(2) Australian marsupials that radiated to form new species

(3) Wolf and Tasmanian Wolf

(4) Both (1) & (2)
Answer (4)


Question-Which of the following is a placental mammal not marsupial?

(1) Wombat

(2) Bobcat

(3) Bandicoot

(4) Tasmanian tiger cat
Answer (2)


Question-When more than one adaptive radiations appeared to have occurred in an isolated geographical area, it is called

(1) Divergent evolution

(2) Convergent evolution

(3) Anthropogenic evolution

(4) Saltation
Answer (2)


Question-Which of the following fact is not true for Homo habilis?

(1) They had a brain capacity of 1400cc

(2) They were the first human-like being

(3) They showed the hominid features

(4) They probably did not eat meat
Answer (1)


Question- Theory of panspermia was proposed to explain the

(1) Origin of universe

(2) Origin of life

(3) Origin of earth

(4) Evolution of life
Answer (2)


Question-As horse evolved, there was progressive reduction in number of toes. Which of the following is correct sequence in the evolution of horse?

(1) Orohippus, Hyracotherium, Mesohippus, Callipus, Merychippus, Pliohippus, Equus

(2) Hyracotherium, Orohippus, Mesohippus, Merychippus, Pliohippus, Equus

(3) Orohippus, Callipus, Hyracotherium, Mesohippus, Merychippus, Pliohippus, Equus

(4) Hyracotherium, Mesohippus, Orohippus, Callipus, Merychippus, Pliohippus and Equus
Answer (2)


Question-According to the discovery made in 1980's. RNA can act like enzyme to assemble new RNA molecules on RNA template. Which of the following statements is not proved by this theory?

(1) Coacervates may not have been the first step in the evolution of life

(2) Perhaps the first macromolecule was RNA

(3) Coacervates were the basis for the first cell

(4) After formation of RNA, stability of molecule improved by surrounding RNA within a coacervate

Answer (3)


Question- The scientist related with the theory of biogenesis and experiments with swan-necked flasks is

(1) Van Helmont

(2) Louis Pasteur

(3) Miller

(4) Haeckel
Answer (2)


Question- An experiment to prove that organic compounds were the basis of life, was performed by

(1) Van Helmont

(2) Oparin

(3) S. Miller

(4) Fox

Answer (3)


Question- Theory of abiogenesis or spontaneous generation was finally disapproved by

(1) Louis Pasteur

(2) A.I. Oparin

(3) A.R. Wallace

(4) Sydney Fox
Answer (1)


Question-Which of the following theory is related to transfer of life from one planet to another?

(1) Theory of special creation

(2) Theory of biogenesis

(3) Theory of spontaneous generation

(4) Cosmozoic theory
Answer (4)


Question-According to cosmozoic theory, life comes on earth from other planets in space in the form of

(1) Spores

(2) Seeds

(3) Gametes

(4) All of these
Answer (4)


Question- H.C. Urey wrote the following book

(1) The Planets

(2) Origin of Life

(3) The Origin of Species

(4) None of these
Answer (1)


Question-Russian scientist who proposed the theory of origin of life was

(1) Oparin

(2) Haldane

(3) Miller

(4) None of these

Answer (1)


Question-Origin of earth dates back to

(1) 10,000–15,000 million years ago

(2) 4000–4600 million years ago

(3) 500–1000 million years ago

(4) 2000–3000 million years ago
Answer (2)


Question-The English scientist who worked on the origin of life and settled in India?

(1) A. I. Oparin

(2) J. B. S. Haldane

(3) Louis Pasteur

(4) Van Helmont
Answer (2)


Question-All of the following conditions were present on early earth, except

(1) High temperature

(2) Volcanic storms

(3) Oxidising atmosphere

(4) Reducing atmosphere
Answer (3)


Question-A.I. Oparin wrote

(1) Origin of Species

(2) Origin of Life

(3) Philosophie Zoologique

(4) The Planet
Answer (2)


Question-The theory that living organisms on the earth came from outer space is based on the study of

(1) Igneous rocks

(2) Sedimentary rocks

(3) Meteorites

(4) Moon soil
Answer (3)


Question-What did S.L. Miller observe in his experimental set-up?

(1) Formation of sugars and nitrogenous bases

(2) Formation of amino acids

(3) Formation of pigments

(4) Formation of fats
Answer (2)


Question-The proponent of the theory of spontaneous generation was

(1) Louis Pasteur

(2) Van Helmont

(3) Spallanzani

(4) Francisco Redi
Answer (2)


Question- S.L.Miller conducted an experiment in 1953 to support the

(1) Theory of spontaneous generation

(2) Biogenesis

(3) Chemical evolution of life

(4) Natural selection
Answer (3)


Question-One of the following appeared on the earth with the coming of the plants and was absent in the past

(1) Carbon dioxide

(2) Methane

(3) Ammonia

(4) Oxygen
Answer (4)


Question-Who finally refuted the theory of spontaneous generation and experimentally disproved it?

(1) Thomas Malthus

(2) Alfred Wallace

(3) Louis Pasteur

(4) Charles Darwin
Answer (3)


Question-Simple one-celled cyanobacteria like organisms appeared on earth

(1) 5600 million years ago

(2) 5000 million years ago

(3) 4600 million years ago

(4) 3.3 to 3.5 billion years ago
Answer (4)


More Question

1 State the theory of spontaneous generation.

2 What is founder effect?

3 Who among the Dryopithecus and Ramapithecus was more man-like?

4 What causes speciation according to Hugo de Vries?

5 Name any two vertebrate body parts that are homologous to human forelimbs?

6 What are the key concepts in the evolution theory of Darwin?

7 Why are the wings of butterfly and of a bat called analogous?

8 How is Darwin’s concept of evolution different from de Vries?

Class_12_Biology _Worksheet_6

a) Mention the specific geographical region where these organisms are found.

b) Name and explain the phenomenon that has resulted in the evolution of such diverse species in the region.

c) Explain giving reasons the existence of placental wolf and Tasmanian wolf sharing the same habitat.

 

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