Ranitidine is a competitive, reversible inhibitor of the action of histamine at the histamine H2-receptors, including receptors on the gastric cells. Ranitidine does not lower serum Ca++ in hypercalcemic states. Ranitidine is not an anticholinergic agent.
1 The Blue Marlins have a diet of: Octopi, squid and pelagic fish such as black fin tuna and frigate mackerel.  They do prefer to hunt alone and during the day, rather than in schools, so it is safe to say they are a rather antisocial species.
exists and is an alternate of . Krill eat small animals called zooplankton. Zooplankton in turn eat phytoplankton, the 'grass of the sea', which are extremely small plants that are are nurtured by minerals that come up in cold water from the ocean floor toward the upper levels of water in the ocean.