Which of the Following Statements Describes Sponges

Question

Which of the following statements describes sponges?
A) they have larvae that are motile and move via the motion of flagella
B) they are the simplest diploblastic animals
C) they have a nerve net but not a central nervous system
D) they have feeding cells called dinoflagellates

Accepted Answer

Sponges have larvae that are motile and can move through water via the motion of flagella. This is a key feature in their life cycle, allowing the dispersal of the species. Sponges are not diploblastic (they lack true tissues), do not have a nerve net (they lack a nervous system), and their feeding cells are called choanocytes, not dinoflagellates, which are a type of algae.