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All questions of The Living World for NEET Exam
Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature? [NEET 2016]- a)Biological names can be written in any language.
- b)The first word in a biological name represents the genus name, and the second is a specific epithet.
- c)The names are written in Latin and are italicized when printed.
- d)When written by hand, the names are to be underlined.
Correct answer is option 'A'. Can you explain this answer?
Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature? [NEET 2016]
a)
Biological names can be written in any language.
b)
The first word in a biological name represents the genus name, and the second is a specific epithet.
c)
The names are written in Latin and are italicized when printed.
d)
When written by hand, the names are to be underlined.
 | Dev Patel answered |
Binomial nomenclature (also called binomial nomenclature or binary nomenclature) is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages.
Which one of the following belongs to the family Muscidae? [NEET 2021]- a)Cockroach
- b)House fly
- c)Firefly
- d)Grasshopper
Correct answer is option 'B'. Can you explain this answer?
Which one of the following belongs to the family Muscidae? [NEET 2021]
a)
Cockroach
b)
House fly
c)
Firefly
d)
Grasshopper
 | Jyoti Sengupta answered |
- Muscidae are commonly known as house flies or stable flies.
- These are found worldwide in distribution and contain almost 4,000 described species in over 100 genera.
- Additional Information
- Anacardiaceae: It is famous as the cashew family or sumac family. Anacardiaceae include numerous genera, like cashew (in the type genus Anacardium), mango, poison ivy, poison oak.
- Hominidae: Hominidae family is one of the two living families of the ape superfamily Hominoidea. This family includes apes like orangutans (genus Pongo), the gorillas (Gorilla), and the chimpanzees as well as human beings (Homo).
- Poaceae: This family is a large and nearly ubiquitous family of monocotyledonous flowering plants known as grasses. This family includes the cereal grasses, bamboos, and the grasses of natural grassland.
The practical purpose of classification of living organisms is to [1999]- a)explain the origin of living organisms
- b)trace the evolution of living organisms
- c)name the living organisms
- d)facilitate identification of unknown organisms
Correct answer is option 'D'. Can you explain this answer?
The practical purpose of classification of living organisms is to [1999]
a)
explain the origin of living organisms
b)
trace the evolution of living organisms
c)
name the living organisms
d)
facilitate identification of unknown organisms
 | Kajal Bose answered |
Biological classification is the scientific arrangement of organisms in a hierarchial series of groups and subgroups on the basis of similarities and differences in their traits. It helps in building evolutionary pathways and in identifying new oganisms.
ICBN stands for [2007]- a)International Code of Botanical Nomenclature
- b)International congress of Biological Names
- c)Indian Code of Botanical Nomenclature
- d)Indian Congress of Biological Names.
Correct answer is option 'A'. Can you explain this answer?
ICBN stands for [2007]
a)
International Code of Botanical Nomenclature
b)
International congress of Biological Names
c)
Indian Code of Botanical Nomenclature
d)
Indian Congress of Biological Names.
 | Rohit Shah answered |
ICBN = International code of Botanical Nomenclature.
The book Genera Plantarum was written by- a)Bessy [1999]
- b)Hutchinson
- c)Engler and Prantl
- d)Carl Linnaeus
Correct answer is option 'D'. Can you explain this answer?
The book Genera Plantarum was written by
a)
Bessy [1999]
b)
Hutchinson
c)
Engler and Prantl
d)
Carl Linnaeus
 | Krish Saha answered |
Bentham & Hooker wrote the book Genera Plantarum. Bentham began with the Flora Hongkongensis in 1861, which was the first comprehensive work on any part of the little-known flora of China and Hong Kong, including Hong Kong Croton. This was followed by the Flora Australiensis, in seven volumes (1863-1878), the first flora of any large continental area that had ever been finished. His greatest work was the Genera Plantarum, begun in 1862, and concluded in 1883 in collaboration with Sir Joseph Dalton Hooker.
Study the four statements (A - D) given below and select the two correct ones out of them.(A) Definition of biological species was given by Ernst Mayr.(B) Photoperiod does not affect reproduction in plants.(C) Binomial nomenclature system was given by R.H. Whittaker.(D) In unicellular organisms, reproduction is synonymous with growth.The two correct statements are: [NEET 2016]- a)B and C
- b)C and D
- c)A and D
- d)A and B
Correct answer is option 'C'. Can you explain this answer?
Study the four statements (A - D) given below and select the two correct ones out of them.
(A) Definition of biological species was given by Ernst Mayr.
(B) Photoperiod does not affect reproduction in plants.
(C) Binomial nomenclature system was given by R.H. Whittaker.
(D) In unicellular organisms, reproduction is synonymous with growth.
The two correct statements are: [NEET 2016]
a)
B and C
b)
C and D
c)
A and D
d)
A and B
| | Jyoti Sengupta answered |
(A) Definition of biological species was given by Ernst Mayr. - This statement is correct. Ernst Mayr is indeed famous for his contributions to the biological species concept, which defines a species as a group of individuals that actually or potentially interbreed in nature.
(B) Photoperiod does not affect reproduction in plants. - This statement is incorrect. Photoperiod, or the length of day and night, significantly affects reproduction in many plants. It influences flowering time, which is a critical part of the reproductive process in plants.
(C) Binomial nomenclature system was given by R.H. Whittaker. - This statement is incorrect. The binomial nomenclature system was introduced by Carl Linnaeus, not R.H. Whittaker. R.H. Whittaker is known for proposing the five-kingdom classification system.
(D) In unicellular organisms, reproduction is synonymous with growth. - This statement is correct. In unicellular organisms, reproduction through cell division is essentially a form of growth, as one cell divides to become two, increasing the population size.
Therefore, the two correct statements are A (Definition of biological species was given by Ernst Mayr) and D (In unicellular organisms, reproduction is synonymous with growth), making the correct answer: A and D
Species are considered as: [2003]- a)Real units of classification devised by taxonomists.
- b) The lowest units of classification.
- c)Real basic units of classification.
- d)The artificial concept of the human mind cannot be defined in absolute terms.
Correct answer is option 'C'. Can you explain this answer?
Species are considered as: [2003]
a)
Real units of classification devised by taxonomists.
b)
The lowest units of classification.
c)
Real basic units of classification.
d)
The artificial concept of the human mind cannot be defined in absolute terms.
 | Avantika Kumar answered |
Understanding the Concept of Species
The concept of species is often debated among biologists and taxonomists. The statement that species are an "artificial concept of the human mind" reflects a philosophical viewpoint on classification.
Human Interpretation of Nature
- Species classification is inherently subjective; it is created by humans to organize and understand the diversity of life.
- Taxonomists use various criteria such as morphology, genetics, and behavior to define and categorize species. However, these criteria can vary and lead to different classifications.
Species as Fluid Entities
- In nature, species boundaries are not always clear-cut.
- Hybridization and continuous variations challenge the rigid definitions of species, making it difficult to establish absolute criteria.
Philosophical Implications
- The notion that species are an artificial concept suggests that our understanding is influenced by human perspectives and societal needs.
- As scientific knowledge evolves, so do the definitions and classifications of species, highlighting their dynamic nature.
Conclusion
- While species play a crucial role in biological classification, they should be viewed as a framework created by humans to facilitate communication about biodiversity, rather than absolute truths.
- Recognizing species as artificial constructs allows for a more flexible and nuanced understanding of life on Earth.
The concept of species is often debated among biologists and taxonomists. The statement that species are an "artificial concept of the human mind" reflects a philosophical viewpoint on classification.
Human Interpretation of Nature
- Species classification is inherently subjective; it is created by humans to organize and understand the diversity of life.
- Taxonomists use various criteria such as morphology, genetics, and behavior to define and categorize species. However, these criteria can vary and lead to different classifications.
Species as Fluid Entities
- In nature, species boundaries are not always clear-cut.
- Hybridization and continuous variations challenge the rigid definitions of species, making it difficult to establish absolute criteria.
Philosophical Implications
- The notion that species are an artificial concept suggests that our understanding is influenced by human perspectives and societal needs.
- As scientific knowledge evolves, so do the definitions and classifications of species, highlighting their dynamic nature.
Conclusion
- While species play a crucial role in biological classification, they should be viewed as a framework created by humans to facilitate communication about biodiversity, rather than absolute truths.
- Recognizing species as artificial constructs allows for a more flexible and nuanced understanding of life on Earth.
The common characteristics between tomato and potato will be maximum at the level of their: [NEET 2013]- a)Genus
- b)Family
- c)Order
- d)Division
Correct answer is option 'B'. Can you explain this answer?
The common characteristics between tomato and potato will be maximum at the level of their: [NEET 2013]
a)
Genus
b)
Family
c)
Order
d)
Division
 | Top Rankers answered |
- Tomato: Solanum lycopersicum
- Potato: Solanum tuberosum
Both belong to the family Solanaceae.
Although they share the same genus (Solanum), NEET considers the family level as the correct answer because the question compares two different species, and maximum common characteristics among different species are generally found up to the family level in the classification hierarchy.
Why other options are wrong:
- (a) Genus: Too specific. Similarities at the genus level apply mainly to organisms that are very closely related species. NEET interprets “maximum similarities between tomato and potato” in a broader sense, as both are economically important but distinct plants; hence the family level is considered.
- (c) Order: Higher level than family, so fewer common characteristics.
- (d) Division: Much broader category (includes many unrelated plants); very few common features at this level.
Final Answer: Family (Solanaceae) – because this level includes both tomato and potato and shows the greatest number of shared characteristics among them compared to order or division.
In the taxonomic categories which hierarchical arrangement in descending order is correct in the case of animals? [NEET 2022]- a)Kingdom, Class, Phylum, Family, Order, Genus, Species
- b)Kingdom, Order, Class, Phylum, Family, Genus, Species
- c)Kingdom, Order, Phylum, Class, Family, Genus, Species
- d)Kingdom, Phylum, Class, Order, Family, Genus, Species
Correct answer is option 'D'. Can you explain this answer?
In the taxonomic categories which hierarchical arrangement in descending order is correct in the case of animals? [NEET 2022]
a)
Kingdom, Class, Phylum, Family, Order, Genus, Species
b)
Kingdom, Order, Class, Phylum, Family, Genus, Species
c)
Kingdom, Order, Phylum, Class, Family, Genus, Species
d)
Kingdom, Phylum, Class, Order, Family, Genus, Species
 | Lead Academy answered |
The correct descending order of taxonomic categories in case of animals is:
Kingdom → Phylum → Class → Order → Family → Genus → Species
House fly belongs to _______ family. [2023]- a)Cyprinidae
- b)Hominidae
- c)Calliphoridae
- d)Muscidae
Correct answer is option 'D'. Can you explain this answer?
House fly belongs to _______ family. [2023]
a)
Cyprinidae
b)
Hominidae
c)
Calliphoridae
d)
Muscidae
 | Stepway Academy answered |
The house fly belongs to the Muscidae family, which is characterized by flies typically associated with humans and human habitations.
'X' and 'Y' are the components of Binomial nomenclature. This naming system was proposed by 'Z': [2023]- a)X - Generic name, Y - Specific epithet, Z - Carolus Linnaeus
- b)X - Specific epithet, Y - Generic name, Z - R.H. Whittaker
- c)X - Specific epithet, Y - Generic name, Z - Carolus Linnaeus
- d)X - Generic name, Y - Specific epithet, Z - R.H. Whittaker
Correct answer is option 'A'. Can you explain this answer?
'X' and 'Y' are the components of Binomial nomenclature. This naming system was proposed by 'Z': [2023]
a)
X - Generic name, Y - Specific epithet, Z - Carolus Linnaeus
b)
X - Specific epithet, Y - Generic name, Z - R.H. Whittaker
c)
X - Specific epithet, Y - Generic name, Z - Carolus Linnaeus
d)
X - Generic name, Y - Specific epithet, Z - R.H. Whittaker
| | Top Rankers answered |
In the binomial nomenclature system proposed by Carolus Linnaeus, 'X' is the generic name, and 'Y' is the specific epithet, which together uniquely identify a species.
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