MCQs on Human Evolution Class 10 Concise ICSE Biology Selina Solutions Ch-14. In this article you will get the answer / Solutions of MCQs on Human Evolution with hint and reason. Assertion Reason Type Questions / MCQs on Human Evolution are also given. Visit official website CISCE for detail information about ICSE Board Class-10 Biology.

MCQs on Human Evolution Class 10 Concise ICSE Biology Selina Solutions Ch-14

Board	ICSE
Subject	Biology
Class	10
Book	Selina Concise
Chapter-14	Human Evolution
Topics	Solutions of MCQs

Solutions of Imp MCQs on Human Evolution with Hint and Reason

Que-1: Which of the following is not a vestigial organ ?

1. Vermiform appendix
2. Caecum
3. Wisdom teeth
4. Ear pinna

Ans: Caecum
Hint: The caecum is not considered a vestigial organ, as it plays an active role in absorbing fluids and salts from digested food.

Que-2: The selective agent that was responsible for causing the change in peppered moth was :

1. Lichens
2. Humans
3. Birds
4. Smoke

Ans: Smoke
Hint: Before industrialisation, light-coloured moths were more numerous because their colouring helped them evade predators. After industrialisation, however, dark-winged moths gained a survival advantage as they blended better with the soot-darkened environment, while the lighter moths were more easily preyed upon. Thus, smoke functioned as the selective agent.

Que-3: The first scientist who proposed his theory for evolution was ;

1. Darwin
2. Lamarck
3. Mendel
4. Wallace

Ans: Lamarck
Hint: Lamarck was the first scientist to propose a theory regarding the process of evolution.

Que-4: The theory proposed by Lamarck is :

1. Autogenesis theory
2. Germplasm theory
3. Theory of inheritance of acquired characters
4. Theory of abiogenesis

Ans: Theory of inheritance of acquired characters
Hint: The theory of inheritance of acquired characters states that traits obtained by an organism during its lifetime can be transferred to its descendants.

Que-5: Charles Darwin explained the origin of species through:

1. Mutation
2. Natural selection
3. Acquired characters
4. Hybridization

Ans: Natural selection
Hint: Charles Darwin accounted for the origin of species by proposing the mechanism of natural selection.

Que-6: Which one of the following was not explained by Darwinism?

1. Natural selection
2. Struggle for existence
3. Use and disuse
4. Survival of the fittest

Ans: Use and disuse
Hint: Use and disuse was discussed by Lamarck.

Que-7: Which of the following human ancestral stages came just before the modern man ?

1. Cro-magnon
2. Ramapithecus
3. Homo habilis
4. Neanderthal man

Ans: Cro-magnon
Hint: Cro-Magnon preceded modern humans in the evolutionary timeline.

Que-8: The scientist who is regarded as the “Father of Evolution” is :

1. Mendel
2. Walther Flemming
3. Darwin
4. Lamarck

Ans: Darwin
Hint: Darwin is regarded as the father of evolution, as his theory of evolution through natural selection laid the groundwork for contemporary evolutionary research.

Que-9: Industrial melanism was highlighted by :

1. Polar bear
2. Butterfly
3. Peppered moth
4. Bear

Ans: Peppered moth
Hint: The case of the peppered moth illustrated natural selection, as the population shifted toward dark-winged individuals following the Industrial Revolution.

Que-10: The famous book “The Origin of Species” was written by :

1. Carl Linnaeus
2. Darwin
3. Lamarck
4. Mendel

Ans: Darwin
Hint: Charles Darwin authored The Origin of Species.

Assertion Reason Type Questions / MCQs on Human Evolution

Que-11:

Assertion. Lamarck’s theory of inheritance of acquired characters is mainly based on “survival of the fittest”.
Reason. Lamarck has explained his principle of ‘use and disuse’ with the example of Giraffe’s neck.

1. Both A and R are True.
2. Both A and R are False.
3. A is True and R is False.
4. A is False and R is True.

Ans: A is False and R is True.
Explain: The concept of “survival of the fittest” is associated with Darwin’s theory of natural selection, not Lamarck’s theory. Lamarck’s theory proposes that traits acquired during an organism’s lifetime can be inherited by its offspring. He illustrated this idea using the example of the giraffe’s neck, suggesting that giraffes stretched their necks to reach higher leaves and that this acquired trait was subsequently passed on to the next generation.

Que-12:

Assertion. The analogous organ to the vermiform appendix in herbivorous mammals is quite helpful in digesting cellulose. But it is considered a vestigial organ in humans.
Reason. Vermiform appendix is a wide worm-like tubular structure, projecting from the blind part of the colon (a part of large intestine). Its function is the same as that of the colon, i.e., absorption of water and some remnants of digested food.

1. Both A and R are True.
2. Both A and R are False.
3. A is True and R is False.
4. A is False and R is True.

Ans: A is True and R is False.
Explain: The vermiform appendix is a slender, worm-shaped tube extending from the blind portion of the colon. In humans, it is classified as a vestigial organ and is regarded as function less.

Que-13:

Assertion. The theory of natural selection, proposed by Charles Darwin, is a fundamental mechanism driving human evolution.
Reason. Natural selection operates through the preservation of favourable variations that enhance an organism’s ability to survive and reproduce, leading to the gradual adaptation of populations to their environments over time.

1. Both A and R are True.
2. Both A and R are False.
3. A is True and R is False.
4. A is False and R is True.

Ans: Both A and R are True.
Explain: Natural selection is defined as the unequal survival and reproduction of organisms resulting from differences in their observable characteristics. It represents a major evolutionary force that alters heritable traits in populations over successive generations.

–:  End of MCQs on Human Evolution Class 10 Concise ICSE Biology Selina Solutions Ch-14 :–

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