Tag: history of classification of organisms

Quizzes (0) Questions (46)

Questions Related to history of classification of organisms

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

Classification system given by Linnaeus was based on 

  1. Androecium structure

  2. Flower arrangements

  3. Leaf morphology

  4. Plant habit
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Carolus Linnaeus is considered as the 'Father of Taxonomy'. He developed a way to name and organize species. 
  • Linnaeus’s artificial system of classification was based on the androecium structure. The significance of flower and fruit structures was first recognized by him. He emphasized the basic numerical characteristics of sexual parts i.e., stamens and carpels. Thus the Linnaeus system is also known as a sexual system.

So the answer is 'Androecium structure'. 
Multiple choice zoology why classification? history of classification of organisms introduction to classification of living organisms living world and classification

Oswald Tippo placed slime molds in

  1. Cyanophyta

  2. Chlorophyta

  3. Phaeophyta

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

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

'Elements de Botanique' was written by

  1. Vaillant

  2. Tournefort

  3. Micheli

  4. De Bary
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

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

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

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
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.
Multiple choice zoology why classification? history of classification of organisms introduction to classification of living organisms living world and classification

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?

  1. P.

  2. Q.

  3. Both P and Q.

  4. None of them.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

According to the principle of priority in the International Code of Nomenclature, the earliest validly published name for a taxon is the correct one. Since 'P' was published in 1960, it takes precedence over the name 'Q' published in 1990.

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

Practical purpose of taxonomy or classification is to

  1. Facilitate the identification of unknown species.

  2. Explain the origin of organisms.

  3. To know the evolutionary process.

  4. Identification of medicinal plants.
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

Linnaeus proposed an outline of plant classification in

  1. Genera Plantarum

  2. Species Plantarurn

  3. Systema Naturae

  4. Philosophia Botanica
Reveal answer Fill a bubble to check yourself
C Correct answer
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. 

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

Carolus Linnaeus classified plant kingdom on the basis of

  1. Floral morphology

  2. Overall morphology of plants

  3. Type of sexual reproduction

  4. Anatomical character
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

System of classification proposed by Linnaeus was

  1. Artificial

  2. Natural

  3. Sexual

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