Class XI · Biology practice
The living World MCQs
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214 questions in this collection · Page 8 of 22
Question 71 of 214
📘 CLASS XI
The Living World
Which of the following statements about taxa is true?
The term taxa refers to taxonomic categories at different hierarchical levels.
Question 72 of 214
📘 CLASS XI
The Living World
Modern taxonomic studies form their basis on which of the following essential components?
Modern taxonomy is based on morphological, anatomical, cellular, developmental and ecological information.
Question 73 of 214
📘 CLASS XI
The Living World
Why were the earliest systems of classification developed by human beings based on the uses of organisms?
Early humans classified organisms mainly according to their usefulness in fulfilling basic needs.
Question 74 of 214
📘 CLASS XI
The Living World
The word systematics is derived from the Latin word systema. What does systema mean?
The Latin word systema means the systematic arrangement of organisms.
Question 75 of 214
📘 CLASS XI
The Living World
The scope of systematics was later enlarged to include which three processes?
The scope of systematics was expanded to include identification, nomenclature and classification.
Question 76 of 214
📘 CLASS XI
The Living World
What vital aspect does systematics take into account that basic taxonomy does not necessarily mandate?
Systematics takes into account the evolutionary relationships among organisms in addition to identification, nomenclature and classification.
Question 77 of 214
📘 CLASS XI
The Living World
In a taxonomic hierarchy, what does each step or category represent?
Each category in the taxonomic hierarchy represents a rank or unit of classification called a taxon.
Question 78 of 214
📘 CLASS XI
The Living World
Insects are a recognisable concrete object that can be given a rank or category because they share common features such as:
Insects are recognised as a taxonomic group because they share characteristic features such as three pairs of jointed legs.
Question 79 of 214
📘 CLASS XI
The Living World
Taxonomic groups or categories are distinct biological entities and NOT merely:
Taxonomic groups are distinct biological entities and not merely morphological aggregates.
Question 80 of 214
📘 CLASS XI
The Living World
Distinguishing one species from another closely related species is primarily based on:
Closely related species are primarily distinguished by their distinct morphological differences.
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