Biology · Science General

Diversity in Living Organisms

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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

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

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

House sparrow can fly for short distances only because of the absence of 

  1. White muscles

  2. Proper wing span

  3. Pneumatic bones

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

Red muscles stores ATP in large amount as they ahave abundant of mitochondria in them since house sparrow lacks red muscles it does not have sufficient energy for long flights.

So, the correct option is 'Red muscles'.

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’.

Multiple choice audible, infra and ultra sound with its application study of sound physics

It has been seen that the behaviour of animals becomes unusual just before the tremor is felt. What is the reason behind this?

  1. because animals are able to detect infrasonic waves produced at the time of tremor.

  2. because animals are able to detect ultrasonic waves produced at the time of tremor.

  3. because animals are able to detect audible waves produced at the time of tremor.

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

Has been seen that the behaviour of animals becomes unusual just before the tremor is felt. This is because animals are able to detect infrasonic waves produced at the time of tremor.
Infrasonic waves are waves of frequency less than 20Hz.

Multiple choice audible, infra and ultra sound with its application study of sound physics

How the bats can locate their prey?

  1. The ultrasonic waves produced by a bat spread out.

  2. The ultrasonic waves after reflection from a prey reach the bat.

  3. both

  4. none
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bats can produce ultrasonic waves by flapping their wings.
They can also detect these waves.these waves produced by the bats after reflection from the obstacles like building guide them to  remain away from the obstacles during night with the help of ultrasonic waves.

Multiple choice biology adaptation plant adaptation adaptation in plants plant habitat

Which of the following is incorrect match?

$1$) Aquatic annelids possess lateral appendages which help in swimming Parapodia
$2$) Balance organs in aquatic and Aurelia Arthropods Statocyst
$3$) Spiders spins web by using Spinnerets
$4$) The body is supported by a proteinaceous skeleton in porifera Spicules
  1. $1$
  2. $2$
  3. $3$
  4. $4$
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice biology adaptation plant adaptation adaptation in plants plant habitat

Besides pneumatic bones, another useful flight adaptation in birds is

  1. Syrinx

  2. Pygostyle

  3. Furcula

  4. Quill feathers
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Besides pneumatic bones, another useful flight adaptation in birds is quill feathers. Each quill feather has a central stem or scapus. It is divided into a lower hollow part called the quill or calamus and a solid upper part termed rachis. Small filaments or barbs are attached to rachis. The barbs remain attached with one another to form a continuous blade for striking the air in flight.
So, the correct answer is 'Quill feathers'.
Multiple choice biology diversity in living world characteristics of vertebrates classification of vertebrata classifications of chordata

Common name of Petromyzon is

  1. Lancet

  2. Hagfish

  3. Acornworm

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

Sea Lamprey or Petromyzon is an agnathan. It is a marine organism. It lacks jaws and resembles an eel. It has a sucker-like mouth that is involved in filter feeding. It has seven brachial openings behind its eyes. They are anadromous and are usually found at depths of around 4000 m and can tolerate temperature ranges from 1.0 and 20 °C.

So, the correct answer is 'Lamprey'.

Multiple choice biology diversity in living world characteristics of vertebrates classification of vertebrata classifications of chordata

Vertebrates without jaws belong to 

  1. Urochordata

  2. Hemichordata

  3. Agnatha

  4. Gnathostomata
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Agnathans are basically primitive jawless fishes. They include lampreys and hagfishes. They usually have soft, cylindrical bodies that lack scales. In some species, separate external gill slits are present, while they open via a single pore in others. They have a suctorial or a filter-feeding mouth and they lack jaws.

So, the correct answer is 'Agnatha'.