Living World Class 11 One Shot | CBSE Class 11 Biology Chapter 1 NCERT
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The biodiversity of living organisms on Earth is studied through taxonomy, which involves grouping organisms based on characteristics, identification, naming, and classification. Understanding biodiversity and taxonomy is essential for research on ecology, evolution, and species categorization, with approximately 13 to 14 million species estimated on Earth, but only 1.7 to 1.8 million discovered so far.
Insights
- The study of biodiversity through taxonomy is crucial for understanding the vast variety of species on Earth, with only a small fraction of the estimated 13 to 14 million species discovered so far. Taxonomy involves grouping organisms based on characteristics, identification, naming, and classification, providing a systematic approach to studying and categorizing living organisms for research on ecology and evolution.
- Taxonomy, rooted in principles established by Carolus Linnaeus, utilizes methods like characterizing, identifying, naming, and classifying organisms to properly group new species and gain insights into their evolutionary history. The taxonomic hierarchy consists of seven mandatory categories, including Kingdom, Phylum, Class, Order, Family, Genus, and Species, with suffixes indicating the level of categorization. Understanding reproductive isolation and genetic barriers between species, as explained by Ernest Mayer, is essential in comprehending how distinct species are formed and classified within the biological world.
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Recent questions
What is biodiversity?
Biodiversity refers to the variety of living organisms on Earth, encompassing all species of plants, animals, and microorganisms present in different ecosystems.
How many species are discovered on Earth?
Approximately 1.7 to 1.8 million species have been discovered on Earth, but it is estimated that there are around 13 to 14 million species in total, indicating a vast amount of undiscovered biodiversity.
Why is taxonomy important?
Taxonomy is crucial for grouping organisms based on characteristics, aiding in identification, naming, and classification. It helps in understanding the diversity of species for research on ecology and evolution.
What are the basic methods of taxonomy?
The four fundamental methods of taxonomy include characterizing, identifying, naming, and classifying organisms. These methods are essential for properly grouping and studying different species.
What are the seven mandatory categories in taxonomy?
The seven mandatory categories in taxonomy are Kingdom, Phylum, Class, Order, Family, Genus, and Species. These categories help in organizing organisms based on similarities and forming a hierarchical classification system.
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