Tag: life

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Questions Related to life

Multiple choice biology biodiversity and classification life introduction to plant kingdom classification of organisms

Morphospecies concept was proposed by 

  1. Darwin

  2. John Ray

  3. Linnaeus

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

  • Both John Ray and Linnaeus proposed Morphospecies concept.
  • Morphological Species Concept characterizes a species by body shape and other structural features and is applied to asexual and sexual organisms. It differs from the modern concept of species where a group of organisms capable of interbreeding and producing fertile offspring are said to belonging to same species. 
  • Darwin proposed the theory of biological evolution.
So, the correct option is 'Both B and C'

Multiple choice biology biodiversity and classification life introduction to plant kingdom classification of organisms

Which of the following is called the father of taxonomy?

  1. Aristotle

  2. Carolus Linnaeus

  3. John Ray

  4. Theophrastus
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Taxonomy is defined as the description, identification, nomenclature, and classification of organisms. Carolus Linnaeus is known as the father of taxonomy.

Aristotle is known as the father of zoology.
John Ray coined the term species.
Theophrastus is known as the father of botany.
So, the correct answer is option B.

Multiple choice biology biodiversity and classification life introduction to plant kingdom classification of organisms

Plant classification as proposed by Carolus Linnaeus was artificial because it was based on

  1. only a few morphological characters

  2. all the possible characters

  3. anatomical characters which are adaptive in nature

  4. physiological and morphological characters.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Artificial systems of classification were based upon morphological characters {such as habit, habitat, colour, number and shape of leaves, etc.) for grouping of organisms. They were mainly based on vegetative characters or on the androecium structure. These systems separated the closely related species since they were based only on a few characteristics.

Multiple choice biology biodiversity and classification life introduction to plant kingdom classification of organisms

How many species of plants did Carolus Linnaeus list in the 1$^{st}$ edition of his book Species Plantarum (1753)?

  1. 10,900

  2. 7,900

  3. 6,000

  4. 15,700
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Species Plantarum, (1753), two-volume work by the Swedish botanist Carolus Linnaeus, in which he established a precise and workable two-word, or binomial, system for naming plants. This system forms the basis of modern plant taxonomy. In this master work Linnaeus described 6,000 species of plants and assigned each plant a genus name and a species name, the genus representing a group of plants, the species designating specific individuals within a given genus. Species Plantarum was the first work that consistently applied a referable system of nomenclature; it was a vast improvement over the cumbersome polynomial descriptions generally used before its publication. The first edition of Species Plantarum (with the 1754 edition of an earlier work, Genera Plantarum) has been internationally accepted as the starting point in the nomenclature of flowering plants and ferns.

So the correct option is '6,000'.

Multiple choice biology classification and variation life introduction to plant kingdom classification of organisms

Which of the following statement is not true regarding keys?

  1. Key is a taxonomical aid and is used for the identification of plants and animals based on similarities and differences.

  2. The keys are based on a pair of contrasting characters generally called couplet.

  3. Each statement in a key is called lead.

  4. Separate taxonomic keys are not required for each taxonomic category such as family, genus and species for their identification purpose.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Taxonomic keys are specific to each taxonomic category. A separate key is required for each rank (e.g., family, genus, species) because the diagnostic characters vary significantly between levels.