Question

Sponges are characterised by

• A. Absence of organs and tissues
• B. Presence of tissues but absence of organs
• C. Presence of both tissues and organs but absence of organ systems
• D. Absence of cells

Answer 1

The correct option is A Absence of organs and tissues

Sponges belong to phylum porifera and are the most primitive of multicellular animals. These animals exhibit only cellular levels of body organisation and thus, are considered as the simplest forms among the metazoans. Hence, sponges lack organs and tissues.

So, the correct answer is 'Absence of organs and tissues'.