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Biology test - III

Description: Get Complete Study Material for Medical Entrance, B.Sc., Class XI, Class XII, Biology, Botany, Zoology, Class XI Biology, Class XII Biology
Number of Questions: 25
Created by:
Tags: Science Biology Medical Biology MBBS MD AFMC PMT BOTANY MEDICAL BIOLOGY UPSC B.Sc CBSE Origin of Life Theories of Origin of Life Theories and Evidences of Evolution Theory of Evolution of Life Forms Evolution Environmental Issues Cell: Structure and Function
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The origin of life is due to

  1. creation by God

  2. effects of sunshine on mud

  3. spontaneous generation

  4. none of the above


Correct Option: D

Which of the following gases was absent at the time of origin of life?

  1. Oxygen

  2. Methane

  3. Hydrogen

  4. Ammonia


Correct Option: A

The primitive atmosphere of earth was devoid of

  1. free-oxygen

  2. methane

  3. cynamide

  4. ammonia


Correct Option: A

In the earliest times, water was in the form of:

  1. ice

  2. snow

  3. super heated steam

  4. ocean


Correct Option: C

Theory of pangenesis was given by

  1. Darwin

  2. de Vries

  3. Curvier

  4. Aristotle


Correct Option: A

Life originated in:

  1. air

  2. soil

  3. mountains

  4. water


Correct Option: D

'Theory of natural selection' was proposed by:

  1. Mendel

  2. Darwin

  3. Haldane

  4. Pasteur


Correct Option: C

Louis Pasteur is known for:

  1. germplasm theory of disease

  2. discovery of blood groups

  3. vaccination

  4. all of the above


Correct Option: A

There is no life on moon as there is no:

  1. oxygen

  2. nitrogen

  3. water

  4. carbon


Correct Option: A

Exobiology is the study of:

  1. life on other planets

  2. life in the air

  3. exodermis

  4. ammonia


Correct Option: A

In which era the origin of life took place?

  1. Precambrian

  2. Proterozoic

  3. Mesozoic

  4. Coenozoic


Correct Option: A

Who said that organisms develop from pre-existing organisms?

  1. Aristotle

  2. Louis Pasteur

  3. Oparin

  4. Morgan


Correct Option: B

Our galaxy is:

  1. Moon

  2. Solar system

  3. Earth

  4. Milky way


Correct Option: D

The atmosphere became oxidizing with the appearance of

  1. autotrophic bacteria

  2. cynobacteria

  3. algae

  4. land plants


Correct Option: B

Cell was discovered by:

  1. Schleiden

  2. Robert Hooke

  3. Robert Brown

  4. Leeuwenhoek


Correct Option: B

The central molten state of earth is called

  1. lithosphere

  2. hydrosphere

  3. barysphere

  4. pyrosphere


Correct Option: C

Air pollution means:

  1. mixing of various gases

  2. water droplets in the air

  3. presence of undesirable elements in the air

  4. all of the above


Correct Option: C

The surface temperature of Sun is:

  1. 20,000,000°C

  2. 6000°C

  3. 5000°C

  4. None of these


Correct Option: B

Basis/Bases of life is/are

  1. nucleic acid

  2. proteins

  3. fatty acid

  4. both 1 and 2


Correct Option: A

On our planet, life has originated approximately

  1. half billion years ago

  2. one billion years ago

  3. two billion years ago

  4. four billion years ago


Correct Option: C

Which of the following was the age of prokaryotic microbes?

  1. Precambrian

  2. Proterozoic

  3. Azoic

  4. Palaeozoic


Correct Option: B

Anaximander believed in the origin of life through:

  1. special creation

  2. spontaneous generation

  3. panspermia

  4. biogenesis


Correct Option: B

The earth originated about _________ ago.

  1. 1.6 billion yrs

  2. 4.6 billion yrs

  3. 8.6 billion yrs

  4. 86 billion yrs


Correct Option: B

In Stanley Miller's classic experiment:

  1. nucleic acids were formed

  2. ultraviolet radiation was used

  3. oxygen was one of the starting ingredients

  4. amino acids were formed


Correct Option: D

Population of different organisms is kept under check by:

  1. high mortality

  2. low birth rate

  3. natural calamities

  4. food chain


Correct Option: D
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