Tag: why classification?

Questions Related to why classification?

Oswald Tippo placed slime molds in

zoology why classification? history of classification of organisms introduction to classification of living organisms living world and classification

  1. Cyanophyta

  2. Chlorophyta

  3. Phaeophyta

  4. Myxomycophyta

Show answer
Correct Option: D
Explanation:

Oswald Tippo, University of Illiniois 1942, classified plant kingdom into two sub-kingdoms: Thallophyta (thalloid plant body without distinct alternation of generations) and Embryophyta (organ level differentiation of plant body with regular alternation of sporophyte and gametophyte generations). The sub-kingdom thallophyta was divided into 10 phyla: Cyanophyta (Blue green algae), Euglenophyta (Grass green algae), Chrysophyta (Yellow green algae), Chlorophyta (Green algae), Pyrrophyta (Golden brown algae), Phaeophyta (Brown algae), Rhodophyta (Red algae), Schizomycophyta (Bacteria), Myxomycophyta (Slime molds) and Eumycophyta (True fungi). Thus, the correct answer is option D. 

'Elements de Botanique' was written by

zoology why classification? history of classification of organisms introduction to classification of living organisms living world and classification

  1. Vaillant

  2. Tournefort

  3. Micheli

  4. De Bary

Show answer
Correct Option: B
Explanation:

'Elements de Botanique' was written by Tournefort. The book aimed to define the concept of the genus for plants. It made a clear distinction between genus and species. it also helped in binomial nomenclature, where the genus name forms the first part of the binomial species name for each species within the genus.

So, the correct answer is option B.

Match the columns

columns I columns II
1. Carp a. 20 years
2. Cobra b. 47 years
3. Turtle c. 152 years
4. Giant Tortoise d. 28 years
5.  Swan e. 123 years
zoology why classification? history of classification of organisms introduction to classification of living organisms living world and classification

  1. 1 -b, 2-d, 3-e, 4 -c, 5-a

  2. 1 -a, 2-d, 3-c, 4 -e, 5-b

  3. 1 -b, 2-c, 3-d, 4 -e, 5-a

  4. 1 -b, 2-c, 3-b, 4 -e, 5-d

Show answer
Correct Option: A
Explanation:
  • All organisms live their life for a definite time period. 
  • The lifespan of various organisms shows wide variation. For example, the carp (Cyprinus) is a long-lived fish, with a life-span of 40 to 50 years, the average lifespan of a wild king cobra is about 20 years, 
  • turtles and tortoises generally have the longest lifespans of any animal and some individuals are known to have lived longer than 150 years and swans can live for over 100 years.
  • Therefore, the correct answer is option A.

The scientific name of a species 'X' was given by scientist in 1960 as 'P' and another scientist gave another name to the species in 1990 as 'Q'. Which is considered as valid name?

zoology why classification? history of classification of organisms introduction to classification of living organisms living world and classification

  1. P.

  2. Q.

  3. Both P and Q.

  4. None of them.

Show answer
Correct Option: A

Practical purpose of taxonomy or classification is to

zoology why classification? history of classification of organisms introduction to classification of living organisms living world and classification

  1. Facilitate the identification of unknown species.

  2. Explain the origin of organisms.

  3. To know the evolutionary process.

  4. Identification of medicinal plants.

Show answer
Correct Option: A
Explanation:

Taxonomy is the science of classification of organisms and includes identification and nomenclature based on the description of characteristics. Taxonomy, therefore, helps to identify the unknown species. Thus, the correct answer is option A.

Linnaeus proposed an outline of plant classification in

zoology why classification? history of classification of organisms introduction to classification of living organisms living world and classification

  1. Genera Plantarum

  2. Species Plantarurn

  3. Systema Naturae

  4. Philosophia Botanica

Show answer
Correct Option: C
Explanation:

Linnaeus is described as the father of taxonomy due to his immense contribution in the field of nomenclature and taxonomy. He identified and classified 24 classes of flowering plants based on the number of stamens. He divided these classes into orders on the basis of carpel characteristics. This sexual, as well as artificial classification system, was first described in his book called as Systema Naturae. 

Thus, the correct answer is option C. 

Carolus Linnaeus classified plant kingdom on the basis of

zoology why classification? history of classification of organisms introduction to classification of living organisms living world and classification

  1. Floral morphology

  2. Overall morphology of plants

  3. Type of sexual reproduction

  4. Anatomical character

Show answer
Correct Option: A
Explanation:

Linnaeus is considered as 'father of taxonomy'. He identified 24 classes of flowering plants based on the number of stamens and their adnate or connate state. He divided these classes into orders on the basis of carpel characteristics. Thus, option A is the correct answer.

System of classification proposed by Linnaeus was

zoology why classification? history of classification of organisms introduction to classification of living organisms living world and classification

  1. Artificial

  2. Natural

  3. Sexual

  4. Both A and C

Show answer
Correct Option: D
Explanation:

Linnaeus is considered as the father of taxonomy. He classified the flowering plants based on the floral characters. The classification was based on the number of stamens and the basis of carpel characteristics. Since, his classification employed sexual characters, it is termed as sexual classification. The artificial system of classification is based on the observable characters such as habit, number, forms, the number of stamen which makes the classification system proposed by Linnaeus as an artificial system.

Thus, the correct answer is option D.

First plant classification was given by

zoology why classification? history of classification of organisms introduction to classification of living organisms living world and classification

  1. Linnaeus

  2. John Ray

  3. Theophrastus

  4. Darwin

Show answer
Correct Option: C
Explanation:

Theophrastus is considered father of botany. He was the Greek philosopher and the first to attempt to classify plants on the basis of their morphological features. On the basis of their height, girth and branches, the plants were classified as tree, shrubs, sub-shrubs and herbs.

Thus, the correct answer is option C.

Which of the following book was written by Theophrastus?

zoology why classification? history of classification of organisms introduction to classification of living organisms living world and classification

  1. 'Enquiry into Plants'

  2. 'On the Causes of Plants'

  3. 'Historia Plantarum'

  4. All of the above

Show answer
Correct Option: D
Explanation:

Theophrastus is considered father of botany. He was the Greek philosopher and the first to attempt to classify plants of the basis of their morphological features. On the basis of their height, girth and branches, the plants were classified as tree, shrubs, sub-shrubs and herbs. He considered the trees as most advanced plant and classified around 500 plant species of plants which are mentioned in his book Historia Plantarum. Enquiry into Plants and On the Causes of Plants were also penned by him. 

Thus, the correct answer is option D.