what are immobile?
adult sponges gastropod shells clouds h2o critical organs all matter an organism's body humans
A B C D E F G H
Sessile Attached permanently, immobile.
adult sponges are immobile
what are immobile? (A) adult sponges (B) gastropod shells (C) clouds (D) h2o (E) critical organs (F) all matter (G) an organism's body (H) humans