Tag: why classification?

Questions Related to why classification?

In Bentham and Hooker's system classification, ranales are included under

  1. Calyciflorae

  2. Inferae

  3. Disciflorae

  4. Thalamiflorae


Correct Option: D
Explanation:

In the Bentham and Hooker classification they were characterized as having "stamens usually many, carpels free, endosperm conspicuous, embryo small". The Ranales were the first cohort of the Thalamiflorae according to this classification.

So, the correct option is ' Thalamiflorae'.

Aristotle divided animals into

  1. Protozoa and metazoa

  2. Chordates and nonchordates

  3. Anaima and enaima

  4. Arboreal and terrestrial


Correct Option: C
Explanation:
  • Aristotle was a Greek philosopher during the Classical period in Ancient Greece, the founder of the Lyceum and the Peripatetic school of philosophy and Aristotelian tradition. 
  • Aristotle was born in 384 B.C. in Stagira in northern Greece.
  • Aristotle divided animals into Aniama( "those without RBC") and enaima( "those with blood). Anaima examples invertebrates and Enaima examples vertebrates
  • So, the correct answer is 'Anaima and enaima'.

Sthavara of Susrata were

  1. Animals

  2. Fishes

  3. Quadrupeds

  4. Plants


Correct Option: A
Explanation:
  • The Sushruta Samhita is an ancient Sanskrit text on medicine and surgery, and one of the most important such treatises on this subject to survive from the ancient world.
  • The Susruta Samhita was written by the famous physician and surgeon Susruta in the 6th century BC who taught at the University of Benares (alternatively Kasi or Varanasi) on the Ganges River.
  • Sthavara of Susrata was Animals.
  • So, the correct answer is 'Animals'.

Teloma theory(Zimmermann, $1930$) is related to origin of.

  1. Pollen tube

  2. Vascular plants

  3. Seed

  4. Fruit


Correct Option: B

Bentham and Hooker proposed their system of classification in

  1. Genera Plantarum

  2. Species Plantarum

  3. Historia Plantarum

  4. Historia Naturae


Correct Option: A
Explanation:

Bentham and Hooker proposed their system of classification in the book Genera Plantarum. In this book, they gave the biggest and natural classification of seed plants. Their system of classification was based on the principle of natural affinities and is considered as pre-Darwinian as it does not take evolution into account.

So, the correct option is 'Genera Plantarum'.

Which is not correct?

  1. Embryology - Aristotle

  2. Taxonomy - Carlous Linnaeus

  3. Paleontology - Leonardo de Vinci

  4. None of the above


Correct Option: D
Explanation:

Taxonomy is the science of the naming and classifying or grouping of organisms. In 1700, Swedish naturalist Carolus Linnaeus developed a hierarchical classification system for organisms called binomial nomenclature. Palaeontology is the science of the forms of life existing in the former geological period, as represented by their fossils. 

Leonardo Da Vinci, the great artist who is famous for his work in painting, sculpting, architecture, science, music etc is known as the father of paleontology.
Aristotle was the great philosopher. He contributed to embryology to some extent by describing the development of the chicken embryo and navel string linking of embryo to the placenta in a species of dogfish. He is called the father of embryology.

Therefore all the answers are correct.

Match column I with column II and select the correct option from the codes given.

Column I Column II
A. Binomial nomenclature (i) Hippocrates
B. The Darwin of the $20^{th}$ century (ii) Ernst Mayr
C. Father of botany (iii) Linnaeus
D. Father of medicine (iv) Theopharastus
  1. A-(iii), B-(ii), C-(iv), D-(i)

  2. A-(iii), B-(ii), C-(i), D-(iv)

  3. A-(i), B-(ii), C-(iii), D-(iv)

  4. A-(ii), B-(iii), C-(iv), D-(i)


Correct Option: A
Explanation:

A) Binomial Nomenclature was given by Linnaeus.

B) Ernst Mayr was one of the 20th century leading evolutionary biologist and that is why he is Darwin of the 20th century.
C) Father of Botany is Theopharastus.
D) Father of medicine is Hippocrates.
So the correct option is "A-(iii), B-(ii), C-(iv), D-(i)".

An English naturalist, who wrote the book 'Historia Generalis Plantarum' and introduced the word 'species' was.

  1. Theophrastus

  2. John Ray

  3. Cuvier

  4. Lamarck


Correct Option: B
Explanation:

John Ray published important works on botany, zoology, and natural theology. His classification of the plant in his Historia Plantarum was an important step towards modern taxonomy. He also coined the term Species.

So the correct option is "John Ray".

A school of systematics, that determines the degree of relatedness by analysing primitive and derived characters and constructing cladograms is

  1. Phylogeny

  2. Cladistics

  3. Cladogram

  4. None of the above


Correct Option: B
Explanation:

  • Cladistics is one of the three schools of systematics that determines the degree of relatedness by analysing the primitive and derived characters and constructs the cladogram.
  • Cladistics is an approach to biological classification in which organisms are categorized in groups based on the most recent common ancestor. A key feature of a clade is that a common ancestor and all its descendants are part of the clade.
  • In Cladistics  to show relations among organisms, cladogram is used. Cladistics is now the most commonly used methods to classify organisms.
So the correct option is Cladistics.

A 'type' is one particular specimen (or a group of specimens) of an organism to which the scientific name of that organism is formally attached. Match column I (type) with column II(description) and select the correct option from the codes given.

Column I Column II
A. Holotype  (i) A specimen cited with an original description other than the holotype or isotype
B. Isotype (ii) A duplicate of the holotype
C. Paratype (iii) A specimen designated in the original description
D. Lectotype (iv) A specimen selected from original material to serve as nomenclatural type when the holotype was not designated.
  1. A-(iii), B-(ii), C-(i), D-(iv)

  2. A-(iii), B-(i), C-(ii), D-(iv)

  3. A-(iii), B-(ii), C-(iv), D-(i)

  4. A-(iii), B-(iv), C-(i), D-(ii)


Correct Option: A
Explanation:

Holotype is a valuable original specimen that describes a new species. It is a term used to describe a specimen that is the first known of its kind anywhere in the world. A holotype can be any type of fossil, and it serves as the name-bearer of the species.
Isotype is an individual specimen that is similar enough genetically to the holotype to be considered to part of the same taxonomic group.
Paratype is a specimen cited in the protologue that is neither the holotype, isotype, nor one of the syntypes. These are often listed as representative specimens in the original description.
Lectotype is a specimen chosen by a later researcher to serve as if it were the holotype. It is chosen from among the specimens available to the original publishing author (the isotypes, syntypes and/or paratypes) of a scientific name when the holotype was either lost or destroyed or when no holotype was designated.
So the correct option is A.