they have adapted to have light from their heads
yes
Creatures in the abyssal zone have adaptations such as bioluminescence to navigate in the darkness, reduced energy metabolism to survive with low food availability, and pressure-resistant bodies to withstand the high water pressure in the deep ocean. Many abyssal zone creatures also have large eyes to capture as much light as possible in the dark environment.
The abyssal zone is the region of the deep ocean that is just above and on the ocean floor.
Echinoderms are marine animals, which means they reside in the ocean. Echinoderms are found from the intertidal zone to the abyssal zone.
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.
in the abyssal zone
Plants need light to grow, in the abyssal/hadal zone, there is no light.
no
The midnight zone and the abyssal zone
Some of them are blind. and the other animals have their own light source; One of them is the Dragonfish.
Zones in the ocean.
The pressure in the abyssal zone increases with depth due to the weight of the overlying water. It can reach extreme levels, enough to compress gases and crush most structures. Deep-sea organisms in this zone have adapted to survive under these high-pressure conditions.