Question

Sycon belongs to a group of animals which are best described as

• A. Unicellular or acellular
• B. Multicellular without any tissue organization
• C. Multicellular with a gastrovascular organization
• D. Multicellular having tissue organization, but no body cavity

Answer 1

The correct option is B Multicellular without any tissue organization

Sycon belongs to phylum Porifera. Members of this phylum are commonly known as sponges. They are generally marine and mostly asymmetrical animals. These are primitive multicellular animals and have a cellular level of organisation. Water enters through minute pores (ostia) in the body wall into a central cavity, spongocoel from where it goes out through the osculum.

Hence the correct option is B.