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214 questions in this collection · Page 1 of 22
Question 1 of 214
📘 CLASS XI
The Living World
Which scientist is renowned as 'The Darwin of the 20th century' and pioneered the currently accepted definition of a biological species?
Ernst Mayr was a Harvard University evolutionary biologist who has been called 'The Darwin of the 20th century' and pioneered the currently accepted definition of a biological species.
Question 2 of 214
📘 CLASS XI
The Living World
What is the estimated number of species that are currently known and described on Earth?
The number of species that are known and described ranges between 1.7 to 1.8 million.
Question 3 of 214
📘 CLASS XI
The Living World
The agreed principles and criteria for providing scientific names to plants are outlined in the:
Scientific names of plants are assigned according to the International Code for Botanical Nomenclature (ICBN).
Question 4 of 214
📘 CLASS XI
The Living World
The system of binomial nomenclature, which is practiced by biologists all over the world, was introduced by:
Carolus Linnaeus introduced the binomial system of nomenclature in which every organism is assigned a two-word scientific name.
Question 5 of 214
📘 CLASS XI
The Living World
Which of the following is an INCORRECT rule for writing biological names?
The genus name starts with a capital letter, whereas the specific epithet always begins with a small letter.
Question 6 of 214
📘 CLASS XI
The Living World
The term 'systematics' is derived from the Latin word 'systema', which means:
The word 'systematics' is derived from the Latin word 'systema', meaning the systematic arrangement of organisms.
Question 7 of 214
📘 CLASS XI
The Living World
Plant families like Convolvulaceae and Solanaceae are placed in the order Polymoniales mainly based on their:
These families are grouped into the same order mainly because of similarities in their floral characters.
Question 8 of 214
📘 CLASS XI
The Living World
The genus Panthera (comprising the lion, tiger and leopard) is grouped together with the genus Felis (cats) under which family?
The genera Panthera and Felis are placed under the family Felidae because of their close similarities.
Question 9 of 214
📘 CLASS XI
The Living World
According to the taxonomic categories, match the correct Family and Order for Wheat (Triticum aestivum):
Wheat (Triticum aestivum) belongs to the family Poaceae and the order Poales.
Question 10 of 214
📘 CLASS XI
The Living World
Which of the following represents the correct ascending sequence of taxonomic categories?
The correct ascending taxonomic hierarchy is Species → Genus → Family → Order → Class → Phylum/Division → Kingdom.