0

Evolution - 1

Description: Evolution - 1
Number of Questions: 20
Created by:
Tags: Evolution - 1 Natural Selection Theories of Evolution Adaptation Origin and History of Life on Earth Speciation
Attempted 0/20 Correct 0 Score 0

In vertebrate evolution, reptiles were able to move completely on land due to

  1. their scales

  2. the amniotic egg

  3. increase in size

  4. availability of food


Correct Option: B

Within a population and due to competition between individuals, the individuals with an advantage will survive to pass their genes on to the next generation. What is this idea called?

  1. Adaptation

  2. Darwin's theory

  3. Speciation

  4. Natural selection


Correct Option: D

In which one of the following geological periods did the first bird appear?

  1. Permian

  2. Triassic

  3. Jurassic

  4. Cretaceous


Correct Option: C

What is the difference between genetic drift and change due to natural selection?

  1. Genetic drift does not require the presence of variation.

  2. Genetic drift does not involve the competition between members of a species.

  3. Genetic drift never occurs in nature, natural selection does.

  4. There is no difference between these two.


Correct Option: B

The term living fossil refers to a

  1. lifelike fossil well preserved in amber

  2. fossil formed from a living animal

  3. living animal which is about to be fossilised

  4. living organisms showing some primitive characteristics


Correct Option: D

All of the following are believed to contribute to genomic diversity among various species except

  1. gene duplication

  2. gene transcription

  3. lateral gene transfer

  4. chromosomal rearrangements


Correct Option: B

Which of the following is/are the most evident source of evolution?

  1. Fossils

  2. Embryos

  3. Morhology

  4. Vestigeal


Correct Option: A
Explanation:

Fossils are the most evident source of evolution. Any relic or remains of prehistoric forms of life are known as fossils. The study of fossil records is known as palaeontology.

The golden age of reptiles is

  1. mesozoic era

  2. palaeozoic era

  3. coenozoic era

  4. cosmozoic era


Correct Option: A

Who propounded the germplasm theory?

  1. Mendel

  2. Weismann

  3. Lamarck

  4. None of these


Correct Option: B

Darwin was influenced by reading the essay of

  1. Lyell

  2. Malthus

  3. Wallace

  4. Herbert Spencer


Correct Option: B

Lamarck’s theory of evolution is also called

  1. survival of the fittest

  2. theory of special reaction

  3. inheritance of acquired characters

  4. all of the above


Correct Option: B
Explanation:

Lamarck in his book ‘Philosophic Zoologique' postulated that environment influenced the morphological characters and that these changes were inherited in the next generation.

Which of the following is the earliest form of fossil in the phylogeny of horse?

  1. Eohippus

  2. Merychippus

  3. Equus

  4. Mesohippus


Correct Option: A
Explanation:

The earliest form of fossil in the phylogeny of horse is Eohippus. The earliest horse had five-toed limbs whereas the present day or modern equus have one functional toe with a large hoof on each foot.

Which of the following birds provided the palaeontology evidences?

  1. Dodo

  2. Darwin's finches

  3. Archaeopteryx

  4. None of these


Correct Option: C
Explanation:

Palaeontology evidences are provided by Archaeopteryx. The earliest known bird in the fossil record is Archaeopteryx which means 'ancient wing'. It exhibited both reptilian and avian characters.

Palaeontological evidence in favour of organic evolution is illustrated by

  1. Duck-billed platypus

  2. Archaeopteryx

  3. Darwin’s finches

  4. Peppered moth


Correct Option: B
Explanation:

Palaeontological evidence in favour of organic evolution is illustrated by Archaeopteryx.

Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired characteristics?

  1. Absence of limbs in snakes

  2. Presence of webbed toes in aquatic birds

  3. Melanisation in peppered moth

  4. Lack of pigment in cave dwelling animals


Correct Option: C
Explanation:

Melanisation in peppered moth does not favour the Lamarckian concept of inheritance of acquired characteristics. This concept of melanisation was put forward by Darwin.

Fossil remains of Archaeopteryx indicate that

  1. it was flying reptile from Triassic

  2. it was a mammal that looked like a reptile from Permian

  3. reptiles gave rise to birds during Jurassic

  4. reptiles gave rise to birds during Permian


Correct Option: C

Experimental proof of the theory that hydrogen, water, methane and ammonia may have originally given rise to amino acids was furnished by

  1. cast

  2. moulds

  3. petrified

  4. coprolites


Correct Option: B

Homo erectus is the zoological name of which of the following?

  1. Java ape man

  2. Peking man

  3. Neanderthal man

  4. Both (1) and (2)


Correct Option: D

During which geological period did the earth become oxygen rich?

  1. Orosirian period

  2. Ediacaran period

  3. Devonian period

  4. Ordovician period


Correct Option: A

Assume that an animal generates heat at a rate proportional to its volume and can radiate heat at a rate proportional to its body surface area. Which of these animals would be the best at maintaining its body temperature in a cold climate?

  1. Mouse

  2. Rabbit

  3. Fox

  4. Bear


Correct Option: D
- Hide questions