Practice free Classification of Living Organisms (Botany) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which of the following statements about taxonomic categories is INCORRECT?
According to the NCERT text, 'Higher the category, greater is the difficulty of determining the relationship to other taxa at the same level.' Therefore, the statement 'simpler is the difficulty' is incorrect.
The scientific term for categories such as 'Plants', 'Animals', 'Mammals', and 'Wheat' at different levels of classification is:
The NCERT states, 'The scientific term for these categories is taxa. Here you must recognise that taxa can indicate categories at very different levels.' Examples given are 'Plants', 'Wheat', 'Animals', 'Mammals', 'Dogs'.
Which of the following taxonomic categories represents a group of organisms sharing common features like three pairs of jointed legs?
The NCERT text mentions, 'Insects represent a group of organisms sharing common features like three pairs of jointed legs. It means insects are recognisable concrete objects which can be classified, and thus were given a rank or category.'
Arrange the following taxonomic categories in ascending order: Phylum, Order, Species, Kingdom, Genus, Class, Family.
The taxonomic hierarchy, in ascending order starting from the lowest, is Species, Genus, Family, Order, Class, Phylum/Division, Kingdom. This is explicitly shown in Figure 1.1 and discussed in the 'Taxonomic Categories' section.
Consider the following table regarding taxonomic categories for humans:
Common Name: Man
Biological Name: Homo sapiens
Genus: Homo
Family: Hominidae
Order: Primata
Class: Mammalia
Phylum: Chordata
Which of the following statements about this classification is correct?
From Table 1.1, for Man: Order is Primata and Class is Mammalia, indicating that Primata is a sub-category of Mammalia. Option 1 is incorrect as Homo is a genus, and Primata is an order. Option 2 is incorrect; humans belong to Phylum Chordata, not Class. Option 4 is incorrect; humans are Primata, houseflies are Diptera.
The problem of classification becomes more complex as we move from lower taxa to higher taxa because:
The NCERT states, 'as we go higher from species to kingdom, the number of common characteristics goes on decreasing. ...Higher the category, greater is the difficulty of determining the relationship to other taxa at the same level. Hence, the problem of classification becomes more complex.'
Which of the following is an example of a taxon at the 'Division' level?
Table 1.1 shows 'Angiospermae' under the 'Phylum/Division' column for Mango. Dicotyledonae is a Class, Poales is an Order, and Hominidae is a Family. In case of plants, the term 'Division' is used instead of 'Phylum'.
A group of organisms that are distinct biological entities and not merely morphological aggregates, representing a unit of classification, is referred to as a:
The NCERT states, 'Each category, referred to as a unit of classification, in fact, represents a rank and is commonly termed as taxon (pl.: taxa).' It further adds, 'These taxonomic groups/categories are distinct biological entities and not merely morphological aggregates.'
What is the basis for taxonomists to develop sub-categories within the hierarchical arrangement of taxonomic categories?
The NCERT states, 'However, taxonomists have also developed sub-categories in this hierarchy to facilitate more sound and scientific placement of various taxa.'
The lowest category in the taxonomic hierarchy recognized for all organisms, including plants and animals, is:
The text clearly states, 'All organisms, including those in the plant and animal kingdoms have species as the lowest category.'
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