2. nadp+ is an exam-
ple of an electron car-
rier. describe its
function in photosyn-
thesis.

it combines with hydrogen(as it is a hydrogen receptor) to give NADPH2 so,oxygen won't escape or recombine with oxygen again

Explanation:

during light reaction in photosynthsis a part of energy released from excited chlorophyll is used in spliiting up water mol. into oxygen and hydrogen and the following occur

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.