Long Q/A Biodiversity - Students Free Notes

What is binomial nomenclature? Describe its aims, principles, and importance using local examples.

Binomial Nomenclature: Definition, Aims, Principles, and Importance Definition Binomial nomenclature is a system of naming organisms using two Latin or Latinized names: the genus name (capitalized) and the species name (lowercase). This system was introduced by Swedish botanist Carl Linnaeus in the 18th century and is universally used in scientific classification. For example, the domestic … Read more

What are the diagnostic characteristics of the four kingdoms of domain Eukarya?

Diagnostic Characteristics of the Four Kingdoms of Domain Eukarya The Domain Eukarya includes all eukaryotic organisms, which have membrane-bound nuclei and organelles. It is divided into four kingdoms: Protista, Fungi, Plantae, and Animalia. Kingdom Cell Type & Structure Mode of Nutrition Reproduction Mobility Examples Protista Unicellular or simple multicellular, eukaryotic Autotrophic (photosynthetic) or heterotrophic Mostly … Read more

Describe the taxonomic ranks of classification.

Taxonomic ranks from broadest to most specific: 1. Domain 2. Kingdom 3. Phylum 4. Class 5. Order 6. Family 7. Genus 8. Species Related Questions: Define: How can you differentiate between? Compare the two-kingdom, three-kingdom, and five-kingdom systems of classification. Answer the following with supportive reasons: What is biodiversity? Write the importance of biodiversity in … Read more

Describe classification. How are organisms classified?

Classification is the systematic grouping of organisms based on similarities and evolutionary relationships. Organisms are classified based on: Cell type (prokaryotic or eukaryotic). Body structure (unicellular or multicellular). Mode of nutrition (autotrophic or heterotrophic). Genetic relationships. Related Questions: Define: How can you differentiate between? Compare the two-kingdom, three-kingdom, and five-kingdom systems of classification. Answer the … Read more

What is biodiversity? Write the importance of biodiversity in the natural ecosystem.

Biodiversity refers to the variety of life on Earth, including species diversity, genetic diversity, and ecosystem diversity. Importance in ecosystems: Maintains ecological balance (e.g., predator-prey relationships). Supports food chains and nutrient cycles. Enhances ecosystem stability and resilience. Provides resources for medicine, agriculture, and industry. Related Questions: Define: How can you differentiate between? Compare the … Read more

Answer the following with supportive reasons:

(a) Which is the simplest domain? Bacteria is the simplest domain because its organisms are unicellular prokaryotes with no nucleus and simple cell structures. (b) Which is the complex domain? Eukarya is the most complex domain because it includes multicellular organisms with complex organelles and well-defined nuclei. (c) Are most bacteria harmful? No, most bacteria … Read more

Compare the two-kingdom, three-kingdom, and five-kingdom systems of classification.

Feature Two-Kingdom System Three-Kingdom System Five-Kingdom System Proposed By Carolus Linnaeus (1735) Ernst Haeckel (1866) R.H. Whittaker (1969) Number of Kingdoms 2 (Plantae & Animalia) 3 (Plantae, Animalia & Protista) 5 (Monera, Protista, Fungi, Plantae, Animalia) Cell Type No distinction between prokaryotes and eukaryotes Introduced Protista for unicellular organisms Clear distinction between prokaryotes (Monera) and … Read more

How can you differentiate between?

(a) Bacteria and Protists: Bacteria: Prokaryotic, unicellular, lack a nucleus, and have peptidoglycan in their cell walls. Protists: Eukaryotic, mostly unicellular, have a nucleus, and lack peptidoglycan. (b) Fungi and Plants: Fungi: Heterotrophic, absorb nutrients, have chitin in their cell walls, and lack chlorophyll. Plants: Autotrophic, perform photosynthesis, have cellulose in their cell walls, and … Read more

Define:

(a) Biodiversity: The variety of living organisms in a particular habitat or the entire Earth. (b) Classification: The process of grouping organisms based on similarities and differences. (c) Taxonomy: The science of naming, defining, and classifying organisms. (d) Systematics: The study of biological diversity and evolutionary relationships among organisms. (e) Taxa: The hierarchical categories in … Read more