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.
Canal system.
Poriferans have holes or âporesâ all over the body that lead to a system that helps in
State the system in poriferans that helps in circulating water throughout the body to bring in food and oxygen.
Name the kingdom having organisms with holes or pores all over 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