Tag: living world and classification

Questions Related to living world and classification

The structural unit of a non-living thing is

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

  1. Electron

  2. Neuron

  3. Cell

  4. Molecule

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Correct Option: D
Explanation:

Electron is a stable sub-atomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids. 

Molecule is a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction. 
Cell is the structural unit of a living being.  
A neuron is an electrically excitable cell that processes and transmits information through electrical and chemical signals. 

Find the odd one out.

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

  1. Cotton shirt

  2. Shoe

  3. Pen

  4. Paper

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Correct Option: C
Explanation:

The odd one out is the pen. The pen is generally made up of plastic. Plastic or polyvinyl chloride is a synthetic material. The material is non-biodegradable and cannot be degraded due to the activity of the microbes. The other examples are cotton shirt, shoe made up of leather and paper are biodegradable.

Thus, the correct answer is option C. 

Who among the following was a paleobotanist?

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

  1. P. Maheshwari

  2. S.R. Kashyap

  3. Birbal Sahni

  4. V. Puri

Show answer
Correct Option: C
Explanation:
These scientists were gems of Indian Botany who contributed and worked in below mentioned fields of plant research:
P. Maheshwari was an eminent plant embryologist and cytogenecist.
S.R. Kashyap was called as is called Father of Indian Bryology (the study of mosses and liverworts)
Birbal Sahni was Paleobotanist who dealt with is the study of fossil plants
V. Puri was renounced scientist in botany with contributions in the field of plant reproductive biology.

Since the question specificy paleobotany field  so the answer is "Birbal Sahni" Paleobotany is the study of fossil plants

The distinguishing property of crystal is 

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

  1. Growth is external

  2. Growth is internal

  3. Growth is discontinous

  4. None of the above

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Correct Option: A
Explanation:

The crystals are the non-living forms which show an external form of growth. The atoms form the nuclei and then the other molecules in the solution when cooled come together forming an aggregated structure. The new atoms and molecules are added from the outside and so, the growth in the non-living forms is always external. There are no cells which divide and show internal growth as in the living forms. 

Thus, the correct answer is option A. 

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

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

  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

Show answer
Correct Option: C
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.

Both living things and nonliving things are made of 

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

  1. Cells

  2. Molecules

  3. Tissues

  4. Organs

Show answer
Correct Option: B
Explanation:
Every living being is composed of cells which act as the basic structural unit. these cells are in turn made up of more simpler molecules like amino acids, sugars. And all non- living things are also made up of repetitive sequence or mixing of one or more types of molecules.
Hence the correct option is B.

Correlated characters are those which occur 

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

  1. At random

  2. In groups or units

  3. In a particular portion of body

  4. In certain groups of organisms

Show answer
Correct Option: C

All of the living phenomena is absent in virus except

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

  1. Mutation

  2. Replication

  3. Respiration

  4. None of the above

Show answer
Correct Option: B
Explanation:

The genetic material in the living organisms has the ability to replicate and form more copies during the process of cellular division. This property of replication is shown by all the living organisms. The viruses are the non-living obligate parasites. They cannot perform any life functions like replication, respiration, digestion, reproduction, etc. 

Thus, the correct answer is option B. 

Select the suitable statement regarding living and non-living objects of nature.

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

  1. Have similar materials

  2. Obey same physico-chemical laws

  3. Both A and B

  4. Have the same materials but obey different physicochemical and biochemical laws.

Show answer
Correct Option: C
Explanation:

Both living things and non living things are made up of molecules which are composed of atoms. This atoms follow same laws of physiochemistry. 

So the correct option is C "both A and B".

Match the columns:

   LIST I   LIST II 
  A  Carp  1 9-10 years
  B  Cobra  2   20 years
  C  Turtle  3   150 years
  D  Giant tortoise  4   80 years
E  Swan  5   30 years 
zoology living and non living characteristics of life attributes of living organisms signs of life biology : an introduction living world and classification

  1. A - 4, B - 1, C - 3, D - 5, E - 2

  2. A - 2, B - 1, C - 4, D - 3, E - 5

  3. A - 1, B - 4, C - 2, D - 3, E - 5

  4. A - 3, B - 4, C - 1, D - 2, E - 5

Show answer
Correct Option: B
Explanation:

(A)Carp - (2) 20 Years -Carps are various species of oily freshwater fish from the family Cyprinidae, a very large group of fish native to Europe and Asia. For example, Cyprinus carpio (common carp) The life span of carp is about 20 Years.

(B)Cobra - (1) 9-10 Years -Cobra is the common name of various elapid snakes, most of which belonging to the genus Naja. The life span of these snakes is about 9-10 Years.
(C)Turtle - (4) 80 Years -Turtle, (order Testudines), any reptile with a body encased in a bony shell. The life span of turtles is about 80 Years.
(D)Giant tortoise - (3)150 Years -Giant tortoises are reptiles that are currently found on two remote groups of tropical islands: the Aldabra Atoll and Fregate Island in Seychelles and the Galápagos Islands in Ecuador. The life span of Gaint tortoises is about 150 years.
(E)Swan - (5) 30 Years -Swans are birds of the family Anatidae within the 
genus Cygnus. The swans' closest relatives include the geese and ducks. The life span of swans is about 30 years.
So, the correct answer is 'A - 2, B - 1, C - 4, D - 3, E - 5'