Biology · Science General

Diversity in Living Organisms

3,323 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

Directions: The given question consists of certain statements. Select the option representing the most logical sequencing of the given statements.

A. Alligator is an amphibian. B. Monkey is a mammal. C. Mammals live on land.
D. Some mammals live on land. E. Amphibians can live in water and on land.
F. Alligators can live in water and on land.

  1. BCD

  2. CEF

  3. BEF

  4. AEF
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Option (4) AEF A → Alligator is an amphibian. E → Amphibian can live in water and on land. These two sentences automatically imply that alligators can live both in water as well as on land. Therefore, the given sentence F is valid for sequence. This marks option (4) correct.

Multiple choice

Which of the following is a set of microbes used as single cell proteins (SCPs)?

  1. Chlorella, Spirulina, Yeasts

  2. Propionibacterium, Jatropha, Hevea brasiliensis

  3. Agrobacterium tumifacium, Spirulina, Hevea brasiliensis

  4. Propionibacterium, Agrobacterium tumifacium, Yeasts

  5. Chlorella, Spirulina, Agrobacterium tumifacium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chlorella, Spirulina and Yeasts are used as single cell proteins.

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.

Multiple choice

Which of the following is not a characteristic of Chordates?

  1. Notochord is present in them at some of their developmental stage.

  2. Their central nervous system is hollow and dorsal.

  3. Heart is always present and it is ventral in position.

  4. The circulatory system is closed type.

  5. A post Anal tail is is absent.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option as Post anal tail is present in them and hence it is not a characteristic of Chordates.