The midnight zone and the abyssal zone
Bathypelagic
Yes. There are thousands of types of anglerfish, and some do, in fact, live in the abyssal zone. As well as other zones, of course. :)
The hadal zone is the deepest zone it is deeper than the abyssal by alot. The abyssal zone only reach 4,000 miles in depth the hadal zone can reach 6,000 miles to 7,000 miles in depth.
The abyssal zone
the abyssal zone, sometimes called the abyss or midnight zone.
The abyssal zone is the region of the deep ocean that is just above and on the ocean floor.
There are positive and negative effects we have on the abyssal zone. Some negative effects are we have poluted the abyssal zone. We can't get down far enough to clean the abyssal zone. Some positive effects we have on the abyssal zone are reasearching the animals down in the abyssal zone and we can find out if they could live in shallower water of it they have to live in deep water.
The 5 ocean zones are: 1. Sunlight zone 2. Twilight zone 3. Midnight zone 4. Abyssal zone 5. Hadal zone These zones are according to the depth of the ocean. 
in the abyssal zone
Plants need light to grow, in the abyssal/hadal zone, there is no light.
no there are five, the sunlight, twilight and midnight zones and the abyss and the trenches