sponges
cnideria
flat worms
round worms
Mollusca
segment of worms
anthropods
echolium
cordata
Not all animal phyla possess a backbone or true tissues. Additionally, not all animal phyla exhibit bilateral symmetry or segmentation. Some phyla, like sponges, lack specialized organ systems, while others, like cnidarians, have a simple nerve net instead of a centralized nervous system.
Do you mean, 'How many phyla are there on Earth?' There are more than 20 phyla of bacteria, over 30 phyla of animals and 12 phyla of plants. Fungi and protists, who knows.....? Add up all these phyla, and you can see there is quite a lot.
Kingdom
Chordata which inludes all mammals
All sponges belong to the phylum Porifera.
They are not alive and there for do not have a phyla.
Yes, Phylum is the category beneath Kingdom. In the Kingdom Animalia or Metazoa all animals are contained, further organised into phyla.
All phyla contain invertebrates. The only one that contains vertebrates is the phylum Chordata, but it also contains some invertebrates.
The plural form of phylum is phyla.
Phyla is the plural of phylum. One phylum, many phyla.
Magnoliophta (or Anthophyta) which include all the flowering plants
phyla which is plural but phylum is singular.