Compare and contrast two types of plants described in this passage

Plants have 98% of the elements found in humans. But for some characteristics they are classified in the biological kingdom Plantae. They multicellular being with limited motility and most importantly, they are able to manufacture their own food. They are essential for the existence of life in this planet and this is why Dr. Maria can see a soul in them. This is a beautiful way to look at these living being, to give them a living soul.

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.

i'm sorry, but can you list the answers? i cannot with something i don't know the answers to

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chris