Classification of organisms Knowledge-Based Download PDF

Questions

1. 1.

   In the modern three-domain system of biological classification, all cellular life is grouped into which three domains?

   • A) Monera, Protista, and Animalia
   • B) Bacteria, Prokaryota, and Eukaryota
   • C) Plantae, Animalia, and Fungi
   • D) Archaea, Bacteria, and Eukarya
2. 2.

   According to the biological species concept, which criterion primarily determines whether two sexually reproducing organisms belong to the same species?

   • A) Their ability to interbreed in nature and produce viable, fertile offspring
   • B) Their sharing of identical anatomical adaptations and ecological niches
   • C) Their geographic coexistence within the exact same habitat range
   • D) Their possession of identical dietary requirements and developmental rates
3. 3.

   In biological classification, which two taxonomic ranks form the scientific name of an organism under the system of binomial nomenclature?

   • A) Family and species
   • B) Genus and species
   • C) Phylum and class
   • D) Kingdom and phylum
4. 4.

   Which type of evidence is considered the most reliable in modern biological classification for establishing evolutionary relationships among organisms?

   • A) Morphological traits that arise through convergent evolution
   • B) Degree of similarity in nucleotide and amino acid sequences
   • C) Overlap in geographical distribution and shared ecological niches
   • D) Analogous structures developed to perform identical physiological functions
5. 5.

   Two organisms that are classified within the same biological family must also belong to which of the following taxonomic ranks?

   • A) Order
   • B) Genus
   • C) Species
   • D) Subspecies