AP BIOLOGY

CLASSIFICATION

THE THREE DOMAIN CLASSIFICATION SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Fill-in-the-blank:Domain ____ Kingdom ____ Phylum ____
A
Order
B
Family
C
Class
D
Species
Explanation: 

Detailed explanation-1: -The general taxonomic classification of organisms is as follows: Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.

Detailed explanation-2: -Domain – highest level constitutes three domains of life. Kingdom – the second most level constitutes five kingdoms. Phylum – a group of related classes. Class – a group of related orders. Order – a group of related families.

Detailed explanation-3: -Class: This taxonomic category includes related orders. Class Mammalia includes orders such as Primata and Carnivora. Phylum/Division: The term phylum is used in the case of animals. For plants, we use the term division. Kingdom: It is the highest category in the system of classification.

Detailed explanation-4: -Under this system, there are three domains-domain Bacteria (corresponding to domain Eubacteria), domain Archaea (corresponding to kingdom Archaebacteria), and domain Eukarya (corresponding to kingdoms Fungi, Plantae, Animalia, and kingdom “Protista”).

Detailed explanation-5: -Phylum (plural: phyla) is the next rank after kingdom; it is more specific than kingdom, but less specific than class. There are 35 phyla in the kingdom Animalia, including Chordata (all organisms with a dorsal nerve cord), Porifera (sponges), and Arthropoda (arthropods).

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