In this assignment, you will create a poster with an illustration that models stem cell division and differentiation. Your poster should include a title, an illustration, and brief descriptions of stem cells, stem
cell division and differentiation, and the role of specialized cells in complex organisms, such as humans.
You will also type one to two paragraphs summarizing the information from your poster.

privet, kak tvoy den' ya pytayus' poluchit' mnogo ochkov, chtoby razdat'

organisms that lack symmetry are called asymmetrical and belong to phylum porifera/sponges.

organisms with specialized stinging cells belong to phylum cnidaria. stinging cells are called cnidoblast cells.

cnidarians show two morphological forms : polyp (sessile) and medusa (mobile)

filter feeding is observed in porifera members.  

alternation of generation is observed in coelenterata or cnidaria. there is alternation of asexual polyp form and sexual medusoid form. it is also referred as metagenesis.