Grossmont College Structures and functions Phylum Polifera Questions

I’m perplexing to examine for my Biology sequence and I want some aid to apprehend this scrutiny.

  • Explain basic collectiveness sketch of members of Porifera.
  • Identify structures and functions choanocytes and spicules.
  • Determine the phylogenetic relationships of Porifera by sketch a phylogenetic tree.