Biology · Science General

Diversity in Living Organisms

3,829 Questions

The diversity in living organisms deals with the classification of life forms into various kingdoms and phyla. This topic covers specific traits of bacteria, animal body cavities, and structural adaptations for survival. These fundamentals are crucial for biology sections in medical entrance and state board exams.

Animal phyla characteristicsBacteria and flagellaBiological adaptationsKingdom Animalia classificationBody cavity typesExtinct organism subphylaJawless animals identification

Diversity in Living Organisms Questions

Multiple choice

Which of the following statements is/are false?

a. The kingdom Protoctista is a collection of all the eukaryotic organisms that do not fit neatly into the other three eukaryotic kingdoms. b. A group of organisms that does not fit neatly into any classification scheme are the viruses. c. Viruses have a cellular structure and can only reproduce by invading the living cells.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option as this statement is false. Viruses do not have a cellular structure and can only reproduce by invading the living cells.

Multiple choice

Which of the following is not a characteristic of Platyhelminthes?

  1. They are cylindrical in form and are called roundworms.

  2. They are acoelomate.

  3. They have an incomplete digestive system.

  4. They are hermaphrodites.

  5. Circulatory system, respiratory system and skeleton are absent.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct option as this is not a characteristic of Platyhelminthes. Platyhelminthes are called flatworms. Aschelminthes are called roundworms.

Multiple choice

Match the following:

 
a. Hydrozoa 1. Their life history lacks a polypoid form and only has a medusoid form.
b. Scyphozoa 2. Their life history includes both polypoid and medusoid forms.
c. Anthozoa 3. Their life history has only polypoid form, the medusoid forms are absent.

  1. a - 2, b - 1, c - 3

  2. a - 2, b - 3, c - 1

  3. a - 1, b - 3, c - 2

  4. a - 1, b - 2, c - 3

  5. a - 3, b - 1, c - 2
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct option. Hydrozoa's life history includes both polypoid and medusoid forms. Scyphozoa's life history lacks polypoid phase and has only medusoid form. Anthozoa's life history has only polypoid form, the medusoid forms are absent.

Multiple choice

Which of the following is a characteristic of Annelids?

  1. Their appendages are jointed.

  2. They have a small coelom.

  3. Annelids have a closed circulatory system.

  4. The sensory system of Annelids is well developed.

  5. Annelids locomotory organs are legs and wings.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option. Annelids have a closed circulatory system. Their blood flows inside blood vessels.