NEET
- Exam
- NEET
- Subject
- Botany
- Chapter
- The Living World
NEET · Botany · The Living World
Read the following statements regarding taxonomic categories and...
Read the following statements regarding taxonomic categories and the hierarchy of classification:
(I) As we go higher from species to kingdom, the number of common characteristics goes on decreasing.
(II) Lower the taxa, more are the characteristics that the members within the taxon share.
(III) Higher the category, greater is the difficulty of determining the relationship to other taxa at the same level.
(IV) Order is a higher category and its members share more common characters than members of a family.
How many of the above statements are correct?
(I) As we go higher from species to kingdom, the number of common characteristics goes on decreasing.
(II) Lower the taxa, more are the characteristics that the members within the taxon share.
(III) Higher the category, greater is the difficulty of determining the relationship to other taxa at the same level.
(IV) Order is a higher category and its members share more common characters than members of a family.
How many of the above statements are correct?
Options
- AFour
- BThree
- CTwo
- DOne
Correct answer
B. Three
Step-by-step solution
Let us evaluate each statement based on the principles of taxonomic hierarchy:
Statement (I) is correct: As we move from lower categories (like species) to higher categories (like kingdom), the organisms become less similar, so the number of common characteristics goes on decreasing.
Statement (II) is correct: Lower taxa consist of closely related organisms, meaning the members within the taxon share a maximum number of characteristics.
Statement (III) is correct: At higher categories, organisms share fewer common features, making it more difficult to determine their evolutionary and taxonomic relationships to other taxa at the same level.
Statement (IV) is incorrect: Order is indeed a higher category than family, but because it is higher, its members share fewer common characters than the members of a family.
Since statements (I), (II), and (III) are correct, exactly three statements are correct.
Answer: Three
Statement (I) is correct: As we move from lower categories (like species) to higher categories (like kingdom), the organisms become less similar, so the number of common characteristics goes on decreasing.
Statement (II) is correct: Lower taxa consist of closely related organisms, meaning the members within the taxon share a maximum number of characteristics.
Statement (III) is correct: At higher categories, organisms share fewer common features, making it more difficult to determine their evolutionary and taxonomic relationships to other taxa at the same level.
Statement (IV) is incorrect: Order is indeed a higher category than family, but because it is higher, its members share fewer common characters than the members of a family.
Since statements (I), (II), and (III) are correct, exactly three statements are correct.
Answer: Three