NCERT Class-9 Science Solutions: Chapter 7-Diversity In Living Organisms Part 4

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Question 21:

Who introduced the system of scientific nomenclature of organisms?

  1. Robert Whittaker

  2. Carolus Linnaeus

  3. Robert Hooke

  4. Ernst Haeckel

Answer: B

Image the Carolus Linnaeus

Image the Carolus Linnaeus

Image the Carolus Linnaeus

Question 22:

Two chambered heart occurs in

  1. Crocodiles

  2. Fish

  3. Aves

  4. Amphibians

Answer: B

Image thefish and two chambered heart

Image Thefish and Two Chambered Heart

Image thefish and two chambered heart

Question 23:

Skeleton is made entirely of cartilage in

  1. Sharks

  2. Tuna

  3. Rohu

  4. None of these

Answer: A

Image the cartilage in shark

Image the Cartilage in Shark

Image the cartilage in shark

Question 24:

One of the following is not an Annelid

  1. Nereis

  2. Earthworm

  3. Leech

  4. Urchins

Answer: D

Image the Annelid

Image the Annelid

Image the Annelid

Question 25:

The book System Nature was written by

  1. Linnaeus

  2. Haeckel

  3. Whittaker

  4. Robert Brown

Answer: A

Question 26:

Karl Von Lin ne was involved with which branch of science?

  1. Morphology

  2. Taxonomy

  3. Physiology

  4. Medicine

Answer: B

Question 27:

Real organs are absent in

  1. Mollusca

  2. Coelenterate

  3. Arthropoda

  4. Echinodermata

Answer: B

Image the Coelenterate

Image the Coelenterate

Image the Coelenterate

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