0
Octopus
An octopus has no skeleton, but they do have a hard beak. They are known for their long tentacles and ability to squirt ink.
1,030 Questions
Can octopuses form into any shape?
No, but they can change their color and the way they feel (not like emotion feel but like touch feel)
Answer:
The Indonesian mimic octopus (Thaumoctopus mimicus) can alter its colors, contort its body and undulate to imitate the appearance of giant crabs, seashells, flatfish, brittle stars and other undersea life. This is a protective meaure as it can mimic the predators of sea life that are a danger to it, and scare them away. As an example, to mimic a lionfish, it adopts a striped pattern on its skin and positions its arms like the fish's venomous spines.
They have adapted layers of special skin cells that help it to change colors.
Like most animals, octopuses do sleep at night. They, however, don't close their eyes because they have no eyelids.
Is the word octopi a singular or plural?
The word 'octopi' is the plural form of the noun 'octopus'.
The alternate plural form 'octopuses' is also generally accepted.
What adaptations has the octopuses done in order to survive in the deep sea?
Sharp eyes, suckers, and big lungs
Why can't large invertebrates like octopuses live on land?
it is probably because they would not be able to support themselves on land and wouldn't be able to move around easily
What are the adaptations of Octopuses?
Movement - Octopus moves in two ways. The first is jet propulsion. Water is shot out of the mantle cavity very fast through the siphon. This allows the octopus to get quick bursts of speed to elude predators or catch prey. When not using this from of locomotion, the octopus can glide along the bottom using small undulating movements.
Senses - Octopus has very good eyes. They have fully developed retinas and optic lobes. The eyes are the octopuses main sensory organ. Like most marine creatures the octopus can also feel vibrations in the water, but this sense is not as attuned as other animal's. The octopus also has a very complex brain which allows its to learn and problem solve. Depending on what the octopus senses it reacts accordingly. Most of the time the octopus reacts in fear, as do most animals. In which case the octopus can release a cloud of ink and use its siphon to jet away. The octopus can also used special skin cells to change colors to warn potential predators that it is angry and might attack or to camouflage itself. In some cases, octopuses react with curiosity to new stimuli and will carefully approach an object feeling it out with its arms. The octopus' arms are very sensitive and literally have minds of their own. Each sucker can move independently of the other and has a keen sense of touch.
Environment adaptations - The octopus' environment is hostile and difficult to live in. There are always predators about and to stay alive one must have a safe place to sleep and have defenses and adaptations so it can swim in the open to find food. Octopus vulgaris has no shell or skeleton to speak of. This being the case, it can fit into just about any size hole. The only thing is the hole has to be big enough to fit the octopus' hard beak through. Once the beak is through, the soft body can follow. This is very helpful when finding a place to live. It can get into small places and prefers very small cracks with a large interior space. once inside a small hideout, it is nearly impossible for predators to get them out. Another adaptation is defensive. The ink sac is only used if the octopus feels threatened. If scared the octopus will contract muscles around the ink sac expelling a murky black substance. This allows the octopus to use its jet propulsion to escape behind the inky curtain, leaving the possible predator with no idea where the octopus went.
Cool Colors - The octopus along with cuttlefish, and squid can change colors. They have special cells on the outside of their bodies that are kind of like an umbrella. When the umbrella is closed the animal appears a certain color, but when the cells open up like an umbrella, the different color shows and its looks as though the animal changed color. These cells can be opened and close up to five times a second on octopuses. This is known to be used as camouflage and as a mood indicator, but it is also thought to be used as a way of communication between buddies.
United Nations Farms
Do octopuses have good color vision?
It appears to vary from species to species. For example, Octopus aegina has it; but Octopus vulgaris does not.
What color do octopuses change when there scared?
It depends on where the octopi is.
It is supossed to camouflauge
MIMIC diagram is the representation of a circuit.
Mimic is graphical representation on HMI or SCADA or even on a panel with the help of LED,S and circuit flow diagram.
One can represent flow in the plant status of motors, valves damper etc also
How many brains does an octopus have?
An octopus has one central brain located just above its mouth and in between its eyes. Octopi also have a series of ganglia distributed throughout their arms, which enable them to carry out certain autonomous functions.
Coelenterata is an obsolete term encompassing two animal phyla, the Ctenophora (comb jellies) and the Cnidaria (coral animals, true jellies, sea anemones, sea pens, and their allies).
What are two characteristics of both the octopus and the frog that make them animals?
Frogs and octopus lay eggs.
they both find there food
In what parts of the world do octopuses live?
Octopuses live in oceans all over the world. Most are Pelagic, meaning they live near the water's surface in shells, reefs and crevices. Some spieces live on the floor of the ocean, making their homes out of caves.
What is the octopus major characteristics?
The eight legs, beak, & the size (8-10cm for the pacific red octopus)
Difference between human eye and octopus eye?
The Octopus's eye has a Retina, a Cornea, an Iris and a Lens.
The rod and cone cells of the octopus point toward the incoming light
Octopus's do not have a blind spot while the human does.
