NEET MCQs Practice on The Living World Class-XI Biology, Free unlimited practice on The Living World Class-XI Biology Mcqs

Question 131 of 214

📘 CLASS XI

Assertion (A): When handwritten, both words in a biological name are separately underlined.

Reason (R): Underlining handwritten biological names indicates their Latin origin.

Separate underlining in handwritten scientific names serves the same purpose as italics in print.

Question 132 of 214

📘 CLASS XI

Assertion (A): In the biological name Mangifera indica Linn., the abbreviation "Linn." indicates the plant's family.

Reason (R): The name of the author appears after the specific epithet in an abbreviated form.

"Linn." represents Linnaeus, the author who first described the species, not its family.

Question 133 of 214

📘 CLASS XI

Assertion (A): It is necessary to devise the process of classification to study all living organisms.

Reason (R): It is nearly impossible to study every single living organism individually without grouping them.

Classification makes the study of the enormous diversity of organisms practical.

Question 134 of 214

📘 CLASS XI

Assertion (A): Groups such as Plants, Animals, Mammals and Dogs are convenient categories used to study organisms.

Reason (R): The scientific term for these categories at very different levels is taxa.

These categories are called taxa, but this terminology does not explain why they are convenient for study.

Question 135 of 214

📘 CLASS XI

Assertion (A): Animals, mammals and dogs represent taxa at the exact same taxonomic level.

Reason (R): A dog is a mammal and mammals are animals, meaning they represent taxa at different levels.

These groups belong to different taxonomic levels in the hierarchy.

Question 136 of 214

📘 CLASS XI

Assertion (A): Modern taxonomic studies are based solely on the external morphological structure of organisms.

Reason (R): External and internal structure, cell structure, development processes and ecological information form the basis of modern taxonomy.

Modern taxonomy integrates multiple sources of information rather than relying only on external morphology.

Question 137 of 214

📘 CLASS XI

Assertion (A): The earliest systems of biological classification were based on evolutionary relationships.

Reason (R): Early human beings needed to classify organisms based on their uses for basic needs like food, clothing and shelter.

Early classification depended on usefulness rather than evolutionary relationships.

Question 138 of 214

📘 CLASS XI

Assertion (A): The word systematics is derived from the Greek word systema.

Reason (R): Systema translates to the systematic arrangement of organisms.

Systema is a Latin word meaning systematic arrangement of organisms.

Question 139 of 214

📘 CLASS XI

Assertion (A): Systematics takes into account evolutionary relationships between organisms.

Reason (R): The scope of systematics was enlarged to include identification, nomenclature and classification.

Both statements are correct, but the reason does not explain why systematics includes evolutionary relationships.

Question 140 of 214

📘 CLASS XI

Assertion (A): Classification is a single-step process of placing an organism into a specific taxon.

Reason (R): Classification involves a hierarchy of steps in which each step represents a rank or category.

Classification follows a hierarchical arrangement of taxonomic ranks.

The living World MCQs