Green plants convert sunlight into chemical energy in the

Explanation:

During the process of photosynthesis, light penetrates the cell and passes into the chloroplast. Light energy is converted to chemical energy, where most is stored in compounds called carbohydrates.

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.