Bio 335 porifera - Study guides, Class notes & Summaries

BIO 335: Porifera Exam Question With Verified Answers. Phylum porifera (sponges) - answerfilter feeders skeleton composed of spicules marine and fresh water covered in ostium and osculum have choanocytes Synapomorphy - internal system of pores and canals Unique characteristics: spicules, choanocytes, and incipient epithelium What are ostium? - answerOstium are incurrent pores on a sponge What are osculum? - answerOsculum are out-current pores on a sponge What are choanocytes? - answer...

BIO 335: Porifera Test- Questions with 100% Correct Answers

What is spongin? - Answer Spongin is a type of collagen that makes up the sponges intercellular matrix and also serves and a skeleton with spicules What is a parenchymula? - Answer A parenchymula is a free swimming larva released by the sponge What are gemmules? - Answer Gemmules are internal buds that form in a sponges that can survive harsh environments; asexual

Phylum porifera (sponges) - filter feeders skeleton composed of spicules marine and fresh water covered in ostium and osculum have choanocytes Synapomorphy - internal system of pores and canals Unique characteristics: spicules, choanocytes, and incipient epithelium What are ostium? - Ostium are incurrent pores on a sponge What are osculum? - Osculum are out-current pores on a sponge