What are the salient features of kingdom porifera?
. How are they classified
. What do you understand by diatomaceous earth
. Mention the economic importance of diatoms
plzz help me
Answers
Answer:
Explanation:
Phylum Porifera are the lowest multicellular animals belonging to the kingdom Animalia.
The word “Porifera” mainly refers to the pore bearers or pore bearing species. Based on the embryological studies, sponges are proved as animals and are classified into a separate Phylum in the animals
This phylum includes about 5000 species. Poriferans are pore-bearing first multicellular animals. The pores are known as Ostia.
The poriferans have a spongy appearance and are therefore called sponges. They are attached to the substratum and do not move. They have the ability to absorb and withhold fluids.
They were initially regarded as plants due to the green colour and their symbiotic relationship with algae. Later, their life cycle and feeding system were discovered, and they were included in the animal kingdom.
Answer:
Living things can be classified into five major kingdoms:
Kingdom Animalia
Kingdom Plantae
Kingdom Fungi
Kingdom Protista
Kingdom Monera (Bacteria)
