Top 100 Important Everyday Science Mcqs Set-8

41- Who among the following proposed the chemical evolution of life?

A. Darwin
B. Oparin
C. Haeckel
D. Lamarck

Answer : B. Oparin

42- The cranial capacity of which of the following prehistoric men was equal to modern man?

A. Peking man
B. Cro-Magnon Man
C. Australopithecus
D. Neanderthal man

Answer : B. Cro-Magnon Man

43- The evolution of human species took place mainly in:

A. Asia
B. Africa
C. Europe
D. China

Answer : B. Africa

44- Which of the following groups of animals was the last to appear in the process of evolution?

A. Arthropod
B. Amphibian
C. Reptile
D. Echinoderm

Answer : B. Amphibian

45- The chief agent of evolution is:

A. Mutation
B. Acquired characters 
C. Sexual reproduction 
D. Natural selection

Answer : D. Natural selection

46- Which of the following is a living fossil?

A. Ginkgo
B. Green algae 
C. Fungus algae
D. Blue green algae 

Answer : A. Ginkgo

47- Who gave the first general theory of evolution on earth?

A. Lamarck
B. Stanley Miller
C. J. Huxley
D. Aristotle

Answer : A. Lamarck

48- Which of the following is the correct sequence in which the given animal groups appeared on the earth during the course of evolution?

A. Porifera-Annelida-Coelenterata-Protozoa
B. Protozoa-Coelenterata-Porifera
C. Annelida-Porifera-Protozoa-Coelenterata
D. Protozoa-Porifera-Coelenterata-Annelida

Answer : D. Protozoa-Porifera-Coelenterata-Annelida

49- Which of the following is in the correct sequential order in which these appeared under stimulated primitive earth condition?

A. Methane, hydrogen cyanide, nitriles, amino acids 
B. Amino acids, nitriles, hydrogen cyanide, methane 
C. Nitriles, amino acids, methane, hydrogen cyanide 
D. Hydrogen cyanide, methane, nitriles, amino acids

Answer : A. Methane, hydrogen cyanide, nitriles, amino acids

50- The most accepted theory of origin of life is:

A. Theory of Spontaneous Generation 
B. Theory of Special Creation 
C. Catastrophe Theory 
D. Oparin-Haldane Theory of Chemosynthesis

Answer : D. Oparin-Haldane Theory of Chemosynthesis

51- The first organisms on earth were:

A. Autotrophs
B. Heterotrophs
C. Saprotrophs
D. None of these

Answer : B. Heterotrophs

52- Natural selection really means:

A. Elimination of the unfit 
B. Survival of the fittest 
C. Struggle for existence 
D. Differential reproduction

Answer : D. Differential reproduction

53- The cranial capacity of modern man is:

A. 400 cm³
B. 900 cm³
C. 1200 cm³
D. 1500 cm³

Answer : D. 1500 cm³

54- The immediate ancestor of modern man is:

A. Java man 
B. Cro-Magnon man
C. Peking man
D. Neanderthal man

Answer : B. Cro-Magnon man

55- Archaeopteryx is a fossil which provides evidence of evolution of:

A. Reptiles from amphibians 
B. Birds from reptiles
C. Mammals from birds 
D. None of these

Answer : B. Birds from reptiles

56- Which of the following conclusions have been deduced from the study of fossils?
1. Many species that existed in the past are now extinct. 2. Complex species have evolved from pre-existing simple forms. 3. Living organisms have the capacity to reproduce. 4. Living organisms depend on materials available on the earth for all their requirements.

A. 1 and 2
B. 1 and 3 
C. 1, 2 and 3 
D. 1 and 4

Answer : A. 1 and 2

57- Which of the following statements about Dinosaurs is correct?

A. The early man was a contemporary of dinosaurs. 
B. Man appeared first after the dinosaurs became extinct 
C. The dinosaurs became extinct about 200 million years before the first man appeared on the earth 
D. The dinosaurs became extinct about six million years before the appearance of the first man on the earth

Answer : B. Man appeared first after the dinosaurs became extinct

58- Life on earth appeared about:

A. 2.6 billion years ago 
B. 3.6 billion years ago
C. 4.6 billion years ago 
D. 5.6 billion years ago

Answer : B. 3.6 billion years ago

59- Genetic variation arises by:

A. Recombination
B. Mutation
C. Chromosomal aberrations 
D. All of these

Answer : D. All of these

60- The nearest relatives of man are:

A. New world monkeys 
B. Apes
C. Old world monkeys 
D. Lemurs

Answer : B. Apes

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