Question

sponge knowledge check
the body of a sponge is filled with ____________ or pores through which water enters their hollow bodies.
○ spicules
○ hollow
○ holes
○ amoebocytes

Explanation:

Sponges have a body structure with numerous holes (ostia) that allow water to enter. Spicules are structural elements, "hollow" is a general description of the body, and amoebocytes are cells. So holes fit as they are the pores for water entry.

Answer:

holes