Porifera
No, crayfish are not members of the superfamily called the Deuterostomes. They belong to the superfamilies' Parastacoidea and Astacoidea.
Phyla are determined by major anatomical features. Does the organism have a spine? Is there a skeleton, and if so is it internal or external? Does it have a shell? Is it motile or sessile? Does it conduct photosynthesis? How many limbs does it have? Does it have hair? Does it have feathers? Does it have eyes? And so forth.
Biologists use characteristics such as body symmetry, presence of tissues, body cavity structure, and digestive system type to classify animal phyla. Other features like presence of a backbone, mode of reproduction, and presence of specific body structures are also taken into account for classification. These characteristics help scientists group animals into different phyla based on shared evolutionary traits.
They are not alive and there for do not have a phyla.
Phyla is the plural of phylum. One phylum, many phyla.
A crows phyla or phylum(plural) is the chordata. A crows phyla or phylum(plural) is the chordata.
how do phyla of vetebrates vary
The plural form of phylum is phyla.
Phyla-Vell was created in 2003.
Phyla dulcis was created in 1934.
Related phyla are grouped into a kingdom.
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.