Problem 56 - Objective Biology for NEET

Question

In the hierarchy of classification, the order is present between (a) Family and genus (b) Phylum and kingdom (c) Family and class (d) Family and species

Step-by-Step Solution

Answer

The right answer is (c) Family and Class.

Step 1: Understanding the Hierarchy

The first step is to understand biological hierarchy of classification. The hierarchy from broadest to the most specific is: Kingdom, Phylum, Class, Order, Family, Genus, and Species.

Step 2: Identify the Position of 'Order'

After understanding the classification, the next step is to identify where 'Order' falls within this hierarchy. It can be noted that 'Order' is present after 'Class' and before 'Family'.

Step 3: Compare with the options

The final step is to compare this information with the options given in the question. This will help in identifying the correct answer. Here 'Order' is present between 'Family' and 'Class'.

Key Concepts

Taxonomy

Taxonomy is the science of defining and naming groups of biological organisms based on shared characteristics. It is a way of organizing and categorizing the vast diversity of life on Earth to better understand evolutionary connections and the relationships among species.

The taxonomic process involves the identification, naming, and classification of organisms into a structured framework. Scientists examine physical, genetic, and biochemical attributes to sort organisms into groups. Taxonomy is not static, as ongoing research sometimes leads to the reclassification of species based on new evidence.

Taxonomy is foundational for many biological disciplines, serving as a reference for studying species diversity, biogeography, and conservation. It also plays a crucial role in fields such as agriculture, medicine, and ecology where understanding the classification of organisms can be critical for practical applications.

Linnaean System

The Linnaean system is a method of biological classification developed by Swedish botanist Carl Linnaeus in the 18th century. It's based on a hierarchical framework that organizes living organisms into successively more specific categories.

The major ranks of this system, in decreasing order of inclusiveness, are Kingdom, Phylum, Class, Order, Family, Genus, and Species, often remembered by the mnemonic 'King Philip Came Over For Good Soup'. Each organism is assigned a two-part Latin name, known as a binomial nomenclature, where the first part is the genus and the second is the specific epithet, together signifying the species.

Despite advances in science which have led to modifications and alternatives, the Linnaean system is still widely used due to its straightforward approach and the stability it brings to the naming and classifying of organisms.

Species Classification

Species classification is the most precise level in the hierarchy of biological classification. A species is defined as a group of individuals that can interbreed and produce fertile offspring under natural conditions. The species is the fundamental unit of biological classification and a core concept of evolutionary biology.

The classification of a species involves detailed analysis, including morphological studies, genetics, behavioral patterns, and ecological roles. It is crucial for distinguishing one organism from another, which can have implications for understanding biodiversity and the management of species within ecosystems.

The hierarchical system of taxonomy makes it easier to study and document species, contribute to conservation efforts, and communicate scientific knowledge about organisms. Taxonomists continually work to classify species, a challenging task given the estimated millions of species on Earth, many of which are yet to be discovered or fully understood.