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Case-Based Type Questions: The Living World - NEET MCQ


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10 Questions MCQ Test Topic-wise MCQ Tests for NEET - Case-Based Type Questions: The Living World

Case-Based Type Questions: The Living World for NEET 2024 is part of Topic-wise MCQ Tests for NEET preparation. The Case-Based Type Questions: The Living World questions and answers have been prepared according to the NEET exam syllabus.The Case-Based Type Questions: The Living World MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Case-Based Type Questions: The Living World below.
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Case-Based Type Questions: The Living World - Question 1

Classification involves hierarchy of steps in which each step represents taxonomic category. Each taxonomic category is referred to as a unit of classification and is commonly termed as taxon. Taxonomic hierarchy is a system of arranging all taxonomic categories in descending order with kingdom at the top and species at the base.

As we go up the taxonomical hierarchy, the number of individuals.' increases but the number of common characteristics goes on decreasing.

Q. If two organisms are in the same phylum, then the two organisms belong to the same

Detailed Solution for Case-Based Type Questions: The Living World - Question 1

 

 

If two organisms are in the same phylum, they must also be in the same higher taxonomic category, which is the kingdom.They do not necessarily belong to the same class, order, or species, because those categories are more specific and fall under the phylum category.

Therefore, the correct answer is: kingdom

 

 

Case-Based Type Questions: The Living World - Question 2

Classification involves hierarchy of steps in which each step represents taxonomic category. Each taxonomic category is referred to as a unit of classification and is commonly termed as taxon. Taxonomic hierarchy is a system of arranging all taxonomic categories in descending order with kingdom at the top and species at the base.

As we go up the taxonomical hierarchy, the number of individuals.' increases but the number of common characteristics goes on decreasing.

Q. Genus represents :

Detailed Solution for Case-Based Type Questions: The Living World - Question 2

In the taxonomical categories the closely related is given as Species > Genus > Family > Order > Orale class > Phylum > Kingdom. Genus represents the Closely related species of Plants & Animals

Topic in NCERT: Genus

Line in NCERT: "Genus comprises a group of related species which has more characters in common in comparison to species of other genera."

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Case-Based Type Questions: The Living World - Question 3

Classification involves hierarchy of steps in which each step represents taxonomic category. Each taxonomic category is referred to as a unit of classification and is commonly termed as taxon. Taxonomic hierarchy is a system of arranging all taxonomic categories in descending order with kingdom at the top and species at the base.

As we go up the taxonomical hierarchy, the number of individuals.' increases but the number of common characteristics goes on decreasing.

Q. Choose the correct statement.

Detailed Solution for Case-Based Type Questions: The Living World - Question 3

 

It is the study of organisms on the basis of their characteristics. It includes morphological and anatomical features for identification.

Systematics is the study of diversity of organisms and all their comparative and evolutionary relationships. It deals with comparative anatomy, ecology, physiology, phylogenetics and biochemistry.

 

Topic in NCERT: Taxonomy

 

Line in NCERT: "Taxonomy is the study of diversity of organisms and all their comparative and evolutionary relationships."

 

Case-Based Type Questions: The Living World - Question 4

Statement: In binomial nomenclature, the first name represents the genus, and the second name represents the specific epithet.

Detailed Solution for Case-Based Type Questions: The Living World - Question 4

Answer: A. True, and it facilitates universal recognition and classification.
Solution: The statement is true. In binomial nomenclature, the first part of the name indicates the genus to which the organism belongs, while the second part, the specific epithet, identifies the species within the genus. This system, established by Carl Linnaeus, is universally applied across both plant and animal kingdoms,

Topic in NCERT: Binomial Nomenclature

Line in NCERT: "The first word in a biological name represents the genus while the second component denotes the specific epithet."

Case-Based Type Questions: The Living World - Question 5

Classification involves hierarchy of steps in which each step represents taxonomic category. Each taxonomic category is referred to as a unit of classification and is commonly termed as taxon. Taxonomic hierarchy is a system of arranging all taxonomic categories in descending order with kingdom at the top and species at the base.

As we go up the taxonomical hierarchy, the number of individuals.' increases but the number of common characteristics goes on decreasing.

Direction : In the following questions the Assertions (A) and Reasons (R) have been put forward. Read both the statements and choose the correct option from the following:

Assertion : Taxonomic hierarchy is the unit of classification that arrange all the taxonomic categories.

Reason : Taxonomic hierarchy is arrangement of all taxonomic categories in descending order from kingdom to species.

Detailed Solution for Case-Based Type Questions: The Living World - Question 5

  • Assertion (A): This statement is incorrect because the taxonomic hierarchy itself is not a "unit" of classification. A taxon (plural: taxa) is a unit of classification, while the taxonomic hierarchy is the system or structure that organizes these units.

  • Reason (R): This statement is correct. The taxonomic hierarchy arranges categories in descending order from kingdom to species.

Given these evaluations, the correct option is: A is false and R is true.

Topic in NCERT: TAXONOMIC CATEGORIES

Line in NCERT: "Taxonomic hierarchy is a system of arranging all taxonomic categories in descending order with kingdom at the top and species at the base."

Case-Based Type Questions: The Living World - Question 6

There are millions of living organisms on earth. All these living organisms differ in shape, size, colour, habitat and many other characteristics. To understand their origin, diversity, distribution and inter relationship, the scientists have devised mechanisms to classify all of them. Classification of living organisms help in revealing the relationship between various organisms. It also helps in making study of organisms easy and organized.

Q. A scientist who made significant contribution of field of classification is :

Detailed Solution for Case-Based Type Questions: The Living World - Question 6

Carolus Linnaeus introduced binomial system of nomenclature. He gave two names to a species : One is generic name while the other is specific name.

Topic in NCERT: Systematics

Line in NCERT: "Linnaeus used Systema Naturae as the title of his publication."

Case-Based Type Questions: The Living World - Question 7

Assertion :Systematics is defined as the science of diversity of organisms in evolutionary context. Reason: Systematics include interrelationship between organisms

Detailed Solution for Case-Based Type Questions: The Living World - Question 7

Simpson (1961) has defined systematics as the branch of biology that deals with the diversity of organism at every level of classification. It deals with cataloguing plants, animals and other organisms into categories that can be named, remembered, compared and studied. Study of only one organism of a group provides sufficient information about the remaining members of that group. It also helps in developing evolutionary relationships with or without the help of taxonomic studies of fossils. So, the correct answer is 'Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion'.

Topic in NCERT: Systematics

Line in NCERT: "Systematics takes into account evolutionary relationships between organisms."

Case-Based Type Questions: The Living World - Question 8
If a taxonomist is trying to determine the taxonomic category of a newly discovered insect species which has jointed legs and wings similar to a common fly, based on the features mentioned, which category would most likely place this new species correctly?
Detailed Solution for Case-Based Type Questions: The Living World - Question 8
Since insects with jointed legs and wings like a fly are characteristic features used to categorize organisms at the order level (such as Diptera for flies), the most appropriate taxonomic category for placing a newly discovered insect with these features would be at the 'Order' level. This ensures the organism is classified based on broader distinguishing characteristics common to a larger group of related organisms.
Case-Based Type Questions: The Living World - Question 9
Considering the principles of nomenclature outlined in the International Code of Botanical Nomenclature, if a scientist discovers a new species of plant within the genus Mangifera, which of the following actions is necessary to correctly name the new species?
Detailed Solution for Case-Based Type Questions: The Living World - Question 9
To correctly name a new species in accordance with the International Code of Botanical Nomenclature, it is necessary to assign a unique specific epithet that has not been used within that genus. This ensures that the new species has a distinct name that avoids confusion with previously described species within the same genus, fulfilling the requirement of uniqueness and clarity in scientific naming.
Case-Based Type Questions: The Living World - Question 10
If a taxonomist classifies a newly discovered species into a certain taxonomic category based on its morphological traits, but later genetic analysis shows significant differences from other members in the same category, what is the most likely taxonomic action to follow?
Detailed Solution for Case-Based Type Questions: The Living World - Question 10
The most likely action following the discovery of significant genetic differences is to reclassify the species into a more appropriate taxonomic category. This adjustment ensures that the classification reflects both morphological and genetic evidence, adhering to the principles of modern taxonomy which integrates phenotypic and genotypic data to achieve a more accurate classification.
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