Yes, because they have no back bone.
Yes.
Yes.
No, they do not. Octopi are invertebrates.
Invertebrates don't have a backbone, like octopuses, crabs, worms, etc
Squid, jellyfish and octopuses are examples of ocean invertebrates.
No, some such as worms have no limbs whereas insects have six and octopuses have eight.
They are almost certainly the smartest invertebrates in the world. They have problem-solving abilities about equal to cats.
Squids' and octopi's nervous system are the most advanced of all invertebrates
Octopuses, hermit crabs, squid, slugs, snails, and sharks are a few creatures that do not have bones (creatures that do not have bones are called 'invertebrates').
# Worms # Slugs # Octopuses # Spiders # ants
Synapomorphies of invertebrates are animals species that do not possess or develop vertebral column. The species that are invertebrate are crab, lobster, snails, clam and octopuses.
Yes.Of the invertebrates, squid an octopuses have the most developed brains, in part to process information coming from their highly sophisticated eyes.
There are many invertebrates in the world but I would just specify the most common invertebrate worms, slugs, octopuses, spiders and ants.