The potential energy of organic molecules is most readily available to cells in the form of

ribonucleic acid
water
minerals
АТР

energy and particles

that is wrong, its not thymus.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.