Tag: biodiversity and its classifications

Questions Related to biodiversity and its classifications

Valveless single chambered heart is found in

  1. Herdmania

  2. Scoliodon

  3. Catla

  4. Amphioxus


Correct Option: A

.......... are called as moss animals.

  1. Loricifera

  2. Ectoprocta

  3. Acanthocephala

  4. Gastrotricha


Correct Option: B
Explanation:

The Bryozoa, also known as Polyzoa, Ectoprocta or commonly as moss animals, are a phylum of aquatic invertebrate animals. They are filter feeders that sieve food particles out of the water using a retractable lophophore a "crown" of tentacles lined with cilia. Most marine species live in tropical waters, but a few occur in oceanic trenches, and others are found in polar waters. 

Therefore, the correct answer is option B.

Larva occurs in

  1. Invertebrates

  2. Vertebrates

  3. Both A and B

  4. None of the above


Correct Option: C

ICBN is

  1. International Code of Botanical Naming

  2. International Code of Botanical Nomenclature

  3. International Class of Botanical Nomenclature

  4. International Classification of Botanical Nomenclature


Correct Option: B
Explanation:

  • ICBN stands for - International Code of Botanical Nomenclature. 
  • It is the set of rules and recommendations for naming plants, fungi, and algae as the ICBN applies not only to plants, as they are now defined, but also to other organisms traditionally studied by botanists.
So, the correct option is 'International Code of Botanical Nomenclature'.

Binomial nomenclature was introduced by :

  1. John Ray

  2. Aristotle

  3. A.P. Decandolle

  4. Carlous Linnaeus


Correct Option: D
Explanation:
  • Carlous Linnaeus is also known as 'Father of modern taxonomy' for introducing the artificial classification system and binomial nomenclature.
  • The term 'species' was coined by Jonh Ray.
  • Father of Biology is Aristotle.
  • A.P. Decandolle introduced the term 'taxonomy'.

The scientific name of mango is written as Mangifera indica L. Pickup the correct statement about the significance of letter 'L'.

  1. Letter 'L' singnifies Latin language.

  2. The name is reverse with indica preceding Mangifera.

  3. Letter 'L' signifies the taxonomist, Linnaeus.

  4. Letter 'L' is superfluous.


Correct Option: C
Explanation:

Carl Linnaeus was a Swedish botanist, physician and zoologist, who laid the foundations for the mordern biological naming scheme of biological nomenclature. He is known as the father of taxonomy and is also considered one of the fathers of modern ecology. In botany, the author abbreviation used to indicate Linnaeus as the authority for species name. In older publications, sometimes the abbreviation "Linn" is found.

Scientific name of plants are mostly derived from which of the following language?

  1. Greek

  2. French

  3. Sanskrit

  4. Latin


Correct Option: D
Explanation:

Scientific names are used as means of classifying or identifying scientific plants. At the time when biologist Carl Linnaeus published books of binomial nomenclature, Latin was used in western Europe as the common language of science and scientific names were in Latin or Greek. Linnaeus continued this practice. 

How many of the given features are associated with binomial nomenclature? 


Descriptive name, Generic epithet, Specific epithet, Latin language, Names of subspecies or variety should be italicised or underlines.

  1. 4

  2. 3

  3. 2

  4. 1


Correct Option: A

Plant nomenclature means

  1. To give names to plants without any rules.

  2. Nomenclature of plants under the international rules.

  3. Nomenclature of plants in local language.

  4. Nomenclature of plants in English language.


Correct Option: B
Explanation:

Nomenclature is application of correct name to plants and taxonomic rank under the rule as drawn by ICBN (International Code for Botanical Nomenclature); option A is incorrect and B is correct. Scientific names formulated in Latin language are preferred over those in vernacular languages due to restricted use and application of these names in one or two languages and non-availability of vernacular names for all known plant species; this makes option C incorrect. Scientific names are not formulated in English but in Latin because latter one is a dead language and the meanings of words are not prone to changes as is the case with English; this makes option D incorrect. Thus, the correct answer is option B.

Most of the botanical names are drawn from which of the following language?

  1. German

  2. Greek

  3. Latin

  4. Spanish


Correct Option: C
Explanation:

Scientific names are derived from Latin language. This is because it is a dead language and the meanings of words are not prone to changes.