What is the shallowest part of the ocean ecosystem is called

intertidal zone.

the shallowest part of the ocean ecosystem, where the ocean floor os covered and uncovered as the tide goes in and out. Plankton. the organisms that float on the water in aquatic ecosystems and are unable to swim.

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

the answer is mosques. they are an important part of islamic culture.