Name the kingdom having organisms with holes or pores all over the body.
name the kingdom of classification to which the organisms with holes or pores allover the body?
in which phylum will you place the organisms which have calcareous spines on their body, presences of holes or pores all over the body
Poriferans have holes or pores all over the body that lead to a system that helps in circulating water to bring in food and oxygen. Name the system.