Phylum: How many phyla are in Animalia, and which examples are included?

Phylum: How many phyla are in Animalia, and which examples are included?

• A. There are 35 phyla in Animalia
• B. There are 50 phyla in Animalia
• C. There are 8 phyla in Animalia
• D. There are 2 phyla in Animalia

Answer: (A)

Phylum is a major grouping used to organize animals by major body plans and developmental traits. In Animalia there are many phyla, with about 35 recognized in standard educational references. This large number reflects the incredible diversity of animal body plans, from the simple organization of sponges in Porifera to the more complex arrangements found in Chordata. Examples of included phyla include Porifera (sponges), Cnidaria (jellyfish and corals), Mollusca (snails, clams, octopus), Arthropoda (insects, spiders, crustaceans), Annelida (segmented worms), Nematoda (roundworms), Echinodermata (starfish and sea urchins), and Chordata (vertebrates and their relatives). While some lists may vary slightly based on classification criteria, 35 phyla is a widely used count in many Praxis Agriculture contexts.

Phylum is a major grouping used to organize animals by major body plans and developmental traits. In Animalia there are many phyla, with about 35 recognized in standard educational references. This large number reflects the incredible diversity of animal body plans, from the simple organization of sponges in Porifera to the more complex arrangements found in Chordata. Examples of included phyla include Porifera (sponges), Cnidaria (jellyfish and corals), Mollusca (snails, clams, octopus), Arthropoda (insects, spiders, crustaceans), Annelida (segmented worms), Nematoda (roundworms), Echinodermata (starfish and sea urchins), and Chordata (vertebrates and their relatives). While some lists may vary slightly based on classification criteria, 35 phyla is a widely used count in many Praxis Agriculture contexts.