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Animal Kingdom Phyla: Diversity and Characteristics

Explore the 9 main phyla of the Animal Kingdom, such as Porifera, Cnidaria, and Arthropoda, each with unique structural and functional properties. Learn about the abundance and diversity of species within these phyla.

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Animal Kingdom Phyla: Diversity and Characteristics

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  1. Animal Kingdom How do animal populations differ?

  2. Kingdom Animalia • Within the Animal Kingdom there are approximately 35 sub-divisions called “Phyla”; each phylum sub-division shares particular structural and functional properties which together separate it from other phyla. • There are 9 main phyla in the Animal kingdom:

  3. Kingdom Animalia • Porifera – These are the salt-water sponges; there are approximately 8,000 separate species existing today.

  4. Kingdom Animalia • Porifera – These are the salt-water sponges; there are approximately 8,000 separate species existing today. • Cnidaria- This group is composed of jellyfish, and other lower aquatic animals; approx 15,000 species exist today

  5. Kingdom Animalia • Porifera – These are the salt-water sponges; there are approximately 8,000 separate species existing today. • Cnidaria- This group is composed of jellyfish, and other lower aquatic animals; approx 15,000 species exist today • Platyhelminthes – These are the flatworms which inhabit both marine and freshwater habitats; over 15,000 species exist today.

  6. Kingdom Animalia • Porifera – These are the salt-water sponges; there are approximately 8,000 separate species existing today. • Cnidaria- This group is composed of jellyfish, and other lower aquatic animals; approx 15,000 species exist today • Platyhelminthes – These are the flatworms which inhabit both marine and freshwater habitats; over 15,000 species exist today. • Nematodes – This phylum consists mainly of about 80,000 known parasitic worms.

  7. Mollusca– This major group consists of snails, clams, squid, and octopus; there are over 110,000 known species.

  8. Mollusca– This major group consists of snails, clams, squid, and octopus; there are over 110,000 known species. • Annelida – About 15,000 individual segmented worms comprise this phylum; the common earthworm is an example. • .

  9. Mollusca– This major group consists of snails, clams, squid, and octopus; there are over 110,000 known species. • Annelida – About 15,000 individual segmented worms comprise this phylum; the common earthworm is an example. • Arthropoda– This very large group consists of insects; it is estimated that there are over 1 million species of insects existing today.

  10. Echinodermata – These are the marine starfish; about 6,000 species exist today.

  11. Echinodermata – These are the marine starfish; about 6,000 species exist today. • Chordata – This is a group of animals which are classified on the basis of possessing 3 common embryological features – dorsal nerve cord, supportive structure called the notocord, and pharyngeal gill pouches. Within this phylum is a highly-advanced group called the `vertebrates' which include fish, amphibians, reptiles, birds, and mammals; it is this phylum to which the human organism belongs.

  12. Phylum Porifera - Sponges • Structure • Bodies of sponges are supported by a network of spikes. • Has pores

  13. Phylum Porifera - Sponges • Reproduction • Asexually by budding • Sexually • Sponges do not have separate sexes but a single sponge produces eggs at one time of the year and sperm at a different time.

  14. Phylum Porifera - Sponges • Getting Food and Oxygen from Water • Feed by straining food particles from water • Oxygen from the water moves into the sponges cells • Move reproductive cells

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