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 zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

Which of the following is a living thing? 

  1. Lamp

  2. Car

  3. Rock

  4. Honey bee
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Among the given things honey bee shows exceptionally distinguished characters of living things that are:
  • Reproduction and metabolism
  • Response to stimuli.
  • Growth and development.
  • Adaptation through evolution
Hence option D "honey bee" is correct.

Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

The organism made up of many cells are known as 

  1. Acellular

  2. Unicellular

  3. Multicellular

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The living organisms are composed of cells which forms the structural and functional unit of the life forms. Some of the animals are composed of only one cell which forms the complete body are known as unicellular. Some of the animals are composed of many cells which form tissues and organs are known as multicellular. 

Thus, the correct answer is option C. 

Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

Among the following choose the properties shown by the living organism exclusively.


I. Growth
II. Increase in mass
III. Self-replication ability
IV. Response to touch stimuli

  1. I and II

  2. I, II and III

  3. III and IV

  4. I, II, III and IV
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
self replicating ability, also known reproduction and responding to or reacting to changes in the internal or external environment is called responsiveness to stimulus are both properties exclusive to living organisms
So, the correct answer is 'III and IV'
Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

The most important characteristics of living organisms is

  1. Multiplication

  2. Movement

  3. Growth

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

The most important characteristic defining an organism as living is the presence of protoplasm in it's cells. While the other three options which are multiplication, movement and growth can not define living to the full extent. As plants are immobile yet they are living. The external growth of mountains, boulders, and sand is observed. Mules, sterile worker bees and sterile couples can not multiply but they are living organisms.

So, an important characteristic of living organisms is 'Protoplasm'.

Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

Which characteristic distinguishes living organism unexceptionally from the non-living?

  1. Metabolism

  2. Reproduction

  3. Movement

  4. Interaction with the environment
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  1. Metabolism occurs 'unexceptionally in all living organisms' and this is a defining feature of living beings. 
  2. Reproduction is absent in sterile or infertile living beings.
  3. Organisms like the majority of sponges and plants do not move, but they're still living.
  4. Patients in a coma do not interact with the environment, yet all the metabolic processes occur thus they are living.
So, the correct option is "Metabolism",

Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for

  1. Growth

  2. Reproduction

  3. Movement

  4. Responsiveness to touch

  5. All of the above
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Living things are lively and active and exhibit characteristics of life, like growth, movement, reproduction, response to stimuli (like touch, smell, light) . These activities are done by the cells of which the living things are made up of. Some examples of living things around us are human beings, animals, plants and microorganisms.

So, the correct answer is 'All of the above'.

Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

A dead organism does not grow. Although, some non-living things can increase in size e.g. mountains, stones. The process is called ______

  1. accretion

  2. accumulation

  3. adaptation

  4. organisation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • Non-living things increase in size due to the addition of similar materials to their outer surface, they include crystals, glaciers, stones and mountains

So, the correct answer is 'accretion'

Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

An example of living organism is/are

  1. Bacteria

  2. Plant roots

  3. Earthworm

  4. Both A and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The bacteria is a unicellular living organism which has been included in the group of prokaryotes. The earthworm is an example of segmented worm which belongs to the phylum Annelida. These are the living organisms which can perform the different biological processes like respiration, digestion, reproduction, etc. The plant roots cannot perform the functions without the other parts of the plants like leaves which produce food. 

Thus, the correct answer is option D. 

Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

In the comparison of living things and non living things, which of the following statement is wrong ?

  1. Both are made of molecules

  2. Both are collection of many atoms

  3. Both respond to stimuli

  4. Both have mass and occupy space
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Both living and non-living things are made up of molecule and molecules age a group of aggregated atoms bound by a chemical bond and hence we can say that they both are a collection of atoms. Since atoms occupy space and have mass, the living things and non-living things also have mass and occupy space.
But responding to stimuli is an exceptionally distinguished character of living things only making it an opposite character of non-living things.
Hence option "respond to stimuli" is correct.
Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

A living organism is unexceptionally differentiated from a non-living structure on the basis of

  1. Reproduction

  2. Growth and movement

  3. Interaction with environment

  4. Responsiveness
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
All organisms, from primitive prokaryotes to most advanced and complex eukaryotes, are able to sense and respond to environmental factors. The stimuli are perceived by sense organs in higher animals through sensory receptors in the eyes, ears, nose etc. Plants do not possess such sense organs. However, they do respond to external factors such as light, water, temperature, pollutants, other organisms, etc. Human beings have an additional facility of self consciousness (awareness of self). Consciousness and response to stimuli are said to be defining properties of living organisms.
So the correct option is D.
Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

Read the following statements and select the correct ones.


(i) An increase in mass is a characteristic of living organisms
(ii) Metabolic reactions can be demonstrated outside the body in isolated cell-free systems.
(iii) 'Response to stimuli' is a defining property of living organisms.

  1. (i) and (ii)

  2. (ii) and (iii)

  3. (i) and (iii)

  4. (i), (ii) and (iii)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

(i) Increase in mass and increase in number of individuals are twin characteristics of growth is true
(ii) Metabolic reactions can be demonstrated outside the body in isolated cell-free systems is true
(iii) 'Response to stimuli' is a defining property of living organisms is true

So, the correct option is '(i), (ii) and (iii)'.

Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

All living organisms are linked to one another because.

  1. They have common genetic material of the same type

  2. They share common genetic material but to varying degrees

  3. All have common cellular organisation

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All organisms share common genetic material, i.e., DNA and RNA. However, it can vary to certain degrees.

Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

One-celled organisms can respond to stimuli.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Response to stimuli also known as sensitivity is shown by all the living organisms whether it is unicellular or multicellular. This is essential for one-celled organisms for their survival. For example, if a unicellular organism is exposed to a chemical, it will react either by producing another chemical or by moving away from the stimulus to survive. 

Thus, the correct answer is option A. 

Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

Which one of the following constitutes the two best reasons for .distinguishing the living from the non-living?

  1. Reproduction and locomotion

  2. Respiration and excertion

  3. Growth and locomotion

  4. Irritability and locomotion
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Respiration and excretion are two exclusive properties of living being ,whereas locomotion can be seen in non living organism owing to certain factors liike wind, water etc. So, the correct option is B. ( Respiration and excertion )

Multiple choice zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

Organisms using protonephridia for excretion are...

  1. flatworms rotifers ,earthworm

  2. amphioxus,cockroach, prawn

  3. planaria ,cephalochordates ,rotifers

  4. rotifers cephalordates ,Annelids
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A flame cell is a specialized excretory cell found in the simplest freshwater invertebrates, including flatworms(except the turbellarian order Acoela), rotifers and nemerteans; these are the simplest animals to have a dedicated excretory system. Bundles of flame cells are called protonephridia. So the correct option is 'Flatworm rotifers, earthworm’.