phenomenon
What is water pressure.
The most important animal in the seas, being the main diet of most marine predators.
What is krill
one organism kills and consumes another
what is predation
These give binocular vision and great sensitivity to small light signals
What is tubular eyes
the process by which certain microbes create energy by mediating chemical reactions
Chemosynthesis
hot springs on the sea floor where mineral-rich, hot water flows into the otherwise cold, deep sea
What is thermal vent
known for their long arms and tentacles and can measure up to seven meters in length. They are found kilometers beneath the ocean surface and there have only been about a dozen confirmed sightings of the animals worldwide
What is Bigfin squid
a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter
what is commensalism
Cephalopods have well-developed senses including vision based on eyes that are amazingly similar to those of vertebrates. This is called?
What is convergent evolution
Their carcasses provide a bounty of nutrients for deepwater creatures. A sudden, concentrated food source and a bonanza for organisms in the deep sea.
What is whale fall
the active or passive sieving of small organisms or food particles from the lake or the ocean
What is Filter feeding
The 4 species of cephalopods?
what is squid, octopuses, cuttlefish, and nautiluses.
a relationship between two species where one benefits and the other suffers.
What is parasitism
The eyes of cephalopods like octopus, squid, and cuttlefish possess only one kind of photoreceptor, implying?
What is colorblind
fecal matter, sand, soot, and other inorganic dust
Marine Snow
The tendency for deep-sea animals, mostly invertebrates, to grow to much larger sizes than their shallow water relatives
What is Deep sea gigantism (or abyssal gigantism)
what is Cephalopods
interactions between two species that benefit both of them
What is Mutualism
Nautilus does not possess a camera eye but rather, an eye that does not have a lens or cornea.
What is pinhole eye
the result of seawater percolating down through fissures in the ocean crust in the vicinity of spreading centers or subduction zones
Hydrothermal Vents
when organisms move up to the uppermost layer of the sea at night and return to the bottom of the daylight zone of the oceans or to the dense, bottom layer of lakes during the day
What is deep sea migration
The eyes of this creature show resemblance to vertebrate eyes. However, there are marked differences such as the eye having an everted retina instead of an inverted retina usually using their large and mobile eyes to constantly scan their environment. As which their are single-chamber eyes.
What are cephalopods eyes
The prey become more difficult to capture and eat, while the predators perfect their abilities to catch and kill their prey.
What is whale
What is cold seeps