Yes,sponge is an unicellular organism.

it is about a sea sponge named spongebob squarepants it is on nickelodion spongebob is a friendly sponge who is an adult but acts a lot like a 6 year old kid

A sponge has minute holes , in which air is trapped , when we press it , the air is expelled out and we are able to compress it

no it is not a type of plant only coral and things like seaweed and kelp

Sponge is solid yet it is compressible the presence of the inter particle spaces or

voids which are filled with air and make it compressible.