Arachnids

Arachnods have 4 pairs of legs.

water spiders are just like any other spider. they need oxygen to breathe. since their home is in the water, best thing to do is to bring the air to their home, that way they can breathe.

the way they bring the air down with them is due to special hairs on their abdomen. they catch the air and allow the spider to bring it down with them.

Arachnids, like all arthropods, have bilateral symmetry. This means they have symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side.

Spiders have an exo skeleton, their "bones" are on the outside. No. they would not have a spine. although when some spiders molt, or shed their skin, and old exoskeleton. This enables them to grow.

Ants are social insects of the family Formicidaeand, along with the related families of wasps and bees, belong to the order Hymenoptera. Ants evolved from wasp-like ancestors in the mid-Cretaceous period between 110 and 130 million years ago and diversified after the rise of flowering plants. Today, more than 12,000 species are classified with upper estimates of about 14,000 species.[3][4] They are easily identified by their elbowed antennae and a distinctive node-like structure that forms a slender waist. ( Wikipedia ).

Arachnids surprisingly,as from what I know,you may want a second opinion,actually keep their population in check by themselves,I know for a fact that the daddy long legs spider eats other spiders as well as their own kind,you also get a nasty tarantula wasp that lays its eggs in the tarantula after paralyzing it,the eggs hatch in the tarantula and they eat it inside out.Nasty....

Arachnids are a species of eight legged, joint-legged invertebrate animals. The class includes spiders and many different species of scorpions.

yeh it's a crustaceans

Spiders, scropion, and tick! (:

Spiders, scropion, and tick! (:

Spiders, scropion, and tick! (:

HEY

The class Arachnida includes animals with four pairs of legs. So mites, scorpions, false scorpions, harvestmen and vinegarones are all in the same class as spiders. Crabs are Crustacea. The only link between them is that both classes are arthropods. Sea Spiders are in a separate class altogether.

Confusion and argument has raged over the position of Horseshoe Crabs. My understanding is that they are now generally accepted as arachnids

I believe that that would be the Piranha.
The answer is piranha.
piranha

Crabs are not arachnids, they are decapods. Decapod means '10 legs', it is just that crabs and some other species have specialised pincers on the front pair, meaning they only walk on 8. However the pincers are technically legs.

Mix A cup of flour A cup of borax a cup of sugar Sprinkle behind cupboards. Roaches carry it to nest and die in 2 weeks

SPIDer

Acarus of species Sarcoptes scabiei does.

The reason why scorpions glow under black light or commonly known as ultra-violent light is because their bodies contain a chemical called phosphate which glows under it.

A beetle is not an arachnid, it is an insect.

I work at a truckstop in Mn and we are about 2.5 miles from water and we have these things hanging and flying yes flying around at night by the gas pumps and diesel pumps. So while they are called water scorpions there is no water near the truckstop but a plethora of these nasty little creatures, especially by our box crusher. The only real difference I have noticed between these and pics from wikipedea is they lack the breathing tube on their backside, and they yes they do fly. Otherwise they are one and the same ugly creepy bugs. I have pic posted on FB of one I trapped in a container to ask others what it was. My darling 13 y/o genius knew right away and now here I am answering your question. But to answer it for real, it is said they live in shallow water near shorelines and feed on fairy shrimp and tadpoles.

Scorpions are opportunistic and will eat a variety of insects, spiders, centipedes, lizards and even mice. They will also eat other scorpions.

Scorpions are preyed upon by other scorpions, tarantulas, lizards, birds, bats, shrews and mice.

From a few weeks to over thirty years.

Some large crustaceans, such as lobsters, are believed to live to over 100 years. If you don't include the larval stage, there are some mayflies that live for only minutes as adults, lasting only long enough to reproduce.

Lice are insects, not arachnids.

It depends on what you mean by "largest". As far as weight, the heaviest known current arachnid is the Theraphosa blondi (Goliath bird eating spider) of South America. As far as leg span, the closest contender to the T. blondi would be the Heteropoda maxima (Giant huntsman spider).

The Goliath Bird Eating spider is said to be the biggest. Other research that I have read up on says that there is a new species of spider in the Middle East located in the Sands of Samar. The legs of this spider are said to reach up to 14cm in length.