The roads in the park are all gravel and in need of grading and leveling. They don't have to post 5 mph signs here. They don't have enough picnic tables so you have to acquire one if you want one. We camped at Amana Colonies RV Park in a Motorhome.
Feeding. 1  Sponges are filter feeders that remove plankton (food) from the water that is brought in through pores lined with collar cells. 2  Flagella pull in bacteria, protozoans, & algae that sticks to collar of choanocytes where it is digested.
Included are the yellow tube sponge, Aplysina fistularis, the purple vase sponge, Niphates digitalis, the red encrusting sponge, Spiratrella coccinea, and the gray rope sponge, Callyspongia sp. Sponges are similar to other animals in that they are multicellular, heterotrophic, lack cell walls and produce sperm cells.