8 each
Octopi's sense of smell is detected through the suckers on their tentacles.
The answer is very simple. Jellyfish are cnidarians. Octopi are not. Because the octopus does not have the same head structure as the jellyfish. Also octopi are cephalopods. They are closer to mollusks in the bases of things but the tentacles are different. Just because they have tentacles does not mean they are in the same categories. But octopi and squid are in the same category as mollusks such as snails. That is a different story though. But that is why they are not the same.
No. Octopi and cuttlefish are related, but they are not the same. Both belong to a class of marine invertebrates cephalopods, which also includes squid. One key difference is that squid and cuttlefish each have eight arms plus two tentacles while an octopus simply has eight arms.
Cephalopods include squid and octopi, and are considered carnivores. They capture prey with their tentacles and consume it with a beak structure.
Visual Differences: - Octopi usually have circle shaped heads, while squid have torpedo/diamond shaped ones with fins on the side. - Squid have much larger eyes. - Squid have an extra pair of long tentacles. - Some octopi have webbing between their arms. - Octopi sometimes LOOK like bumpy while squids sometimes look 'slimy'. Behavior Differences: - Octopi use color-changing as camouflage more than squid do. - Squid swim in the water while octopi usually crawl on the ocean floor. - Octopi hunt alone, some squid come as schools. - Octopi can change the texture of their skin for camouflage and emotions.
there are many breeds of octopi, like the rontan, and the tunana
The tentacles have suction cups at the end of them and they are longer, but the arms are shorter and have suction cups all over them. There are 2 tentacles and 8 arms on the squid.
They use their tentacles to grab food and Put it in their mouth but if you want it in a scientific way, they use their radula to scrape the flesh off of its prey .
They use jet propulsion, expelling water from inside their bodies out through an orifice in between their tentacles. It may be the beak, I don't know. They also make some motion by swinging their tentacles, but very little. It is the same way Nautiluses and Octopi move.
Visual Differences: - Octopi usually have circle shaped heads, while squid have torpedo/diamond shaped ones with fins on the side. - Squid have much larger eyes. - Squid have an extra pair of long tentacles. - Some octopi have webbing between their arms. - Octopi sometimes LOOK like bumpy while squids sometimes look 'slimy'. Behavior Differences: - Octopi use color-changing as camouflage more than squid do. - Squid swim in the water while octopi usually crawl on the ocean floor. - Octopi hunt alone, some squid come as schools. - Octopi can change the texture of their skin for camouflage and emotions.
10A blooper has 10 tentacles.
A star fish has 5 tentacles