Invertebrates

ALL fish, amphibians, reptiles, birds and mammals are VERTEBRATES. A gerbil is a mammal.

The major difference between echinoderms and other invertebrates is that there are few examples echinoderms that do not live in ocean water and none live on land. There are examples of other invertebrates that live in both fresh and salt water and on land. Echinoderms also display radial symmetry as do the jellyfish and sea anemones. If you want to tag the one thing that echinoderms have that no other living invertebrate has, you would probably have to point to their water vascular system (see link).

If you have the McGraw Hill science textbook for 6th grade then you are all set. Look on pages A40-A48.

Fungi are neither plants or animals, they are fungi. Once again, fungi are neither invertebrates or vertebrates, they are fungi.

It's actually MOLLUSKS.

• Porifera (Sponges)
• Cnidaria (Coelenterates)
• Flatworms (Platyhelmenthes)
• Roundworms (Aschelmenthes - Nematode)
• Segmented worms (Annelids)
• Mollusks (Soft-Bodied/ hard shelled Animals)
• Echinoderms (Spiny-Skinned Animals)
• Arthropods

Vertebrates came first... all of those other creatures are vertebrates..

prior to the evolution of the spine (vertebrae) there were no fish, reptiles, mammals birds... nothing like them..

radial symmentry

starfish

They have Bilateral symmetry as a larvae but as they mature they get secondary symmetry. Starfish with five arms have pentaradial symmetry and sea cucumbers and ect. have radial symmetry

42

because 24 divided by 7 = 6

your life

# Worms # Slugs # Octopuses # Spiders # ants

There are two main ways they protect themselves. First, anemone tentacles are venomous, and can numb small animals. This is usually more useful for stinging prey (ie tiny zooplankton) rather than predators, though. There is a useful byproduct to this venom in some species, which is symbiosis with fish that are immune to the venom and live in the tentacles. These fish can help the anemone by fending off possible predators, protecting both their interests and the anemone itself.

There's also a more rarely used behavior, which is "swimming." If an anemone is touched by a predator and the anemone recognizes a specific chemical, it will detach from its substrate and repeatedly bend in half to try and catch a current to sweep it away from danger. Unfortunately this requires a huge amount of energy, of which anemones don't have much. If they fail to catch a current or are dropped near another predator, they're pretty much out of luck.

Worms do not have an exoskeleton like insecta or crustacea, but rather a membrane that covers it's entire body. I am not sure whether or not it is hydrostatic, though I highly doubt it.

Snails, clams, oysters, mussels, octopuses, and squid. Limpet, slug, nudibrank, nautalus, scuttlefish, tusk shell,

Muscles attach to the exoskeletons of invertebrates at sites called apodemes. Apodemes and the exoskeleton are primarily composed of a polymer called chitin.

Lots of awesome things! Each spine fits into a rotator socket, allowing the urchin to move all spines independently. This allows them to catch food and move it towards their mouths, walk around, burrow into shale, and cover themselves in kelp and other material for camouflage.

Earthworms tunnel through the ground by swallowing dirt and passing it through their bodies. In that dirt, the worm gets nutrients from decomposing vegetation, like rotting leaves and other organic material. The worms digestion of this material as it passes through him/her helps break down the leaves and organic material further, helping soil to become fertile, mixed and "nutritious" for plants to grow, the tunnels also irrigate the soil and allow air to be mixed in (oxygen also helps old leaves and dead plants to decompose). Because of worms, when rain falls, fresh water can sink into the earth more easily to reach plant roots and the water table more easily, instead of just rolling down hill and eroding (taking nutrients and soil away) the land. Worms are really cool. Then as the earthworm has digested the dirt and taken the nutrients out of the dirt it poops out the dirt making new dirt that is fertilized and is ready to be dirt.

Like all mammals, koalas are vertebrates because they have a spine and internal skeleton.

Mammals, birds, fish, reptiles and amphibians are all vertebrates.

Birds, insects, and bats are the only animals that can fly.

yes a dumbo octopus is a invertebrate

the answer is go to sameri of legonds and join

Some very great advantages of being invertebrate animals are that the flexibility that the animal may have also some of the advantages are the things and speed of these animals .

A dog is a vertebrate because it has a backbone and a butterfly is a invertebrate because it doesnt have a backbone!

Mice are vertebrates because they have a backbone.

Swans are birds, and all birds have internal skeletons, so no, a swan is not an invertebrate.