The vagal response is an automatic reflex that happens within your body when your vagas nerve is stimulated. This reflex affects your central and peripheral nervous system, as well as your cardiovascular system and therefore a sudden stimulation of this reflex can set off a variety of symptoms.
Deep sea zones. The deep sea or deep layer is the lowest layer in the ocean, existing below the thermocline and above the seabed, at a depth of 1000 fathoms (1800 m) or more. Little or no light penetrates this part of the ocean, and most of the organisms that live there rely for subsistence on falling organic matter produced in the photic zone.
Zone Characteristics Epipelagic sunlit zone: top layer of the ocean where sunlight penetrates Mesopelagic twilight zone: a dim zone where some light penetrates, but not enough for photosynthesis Bathypelagic midnight zone: the layer where no light penetrates Abyssal zone pitch-black bottom layer; the water here is almost freezing and its pressure is immense Hadal zone waters found in the ocean's deepest trenches Although we think of land when we hear the word biome, there are also aquatic ...