Crabs

Baywatch.

Spiders, scorpions, crabs, and lobsters each have eight legs.

none really just that there animals

they lay eggs

they grow hard shells to protect themselves against predators and pincers so the can catch their prey. If they didn't have these things then the species could die out.

No, only the female of ANY animal produces eggs.

Insects

eggs

Attract Females (The bigger the better)

Fend off Predators

It's used just like a normal clabs claw, think of it as a normal claw and the other claw is small

Yes, I can see a couple.

It would depend on why it came off, and that question can be hard to answer. If it came off because of stress, the crab is usually too far gone to recover, and will keep losing limbs until it dies.

If it came off because of a fight, the crab has a good chance of living as long as the environment in your habitat is suitable for the crab to recover in. This means deep, moist sand, proper heat and humidity, etc.

If it came off because the crab was stuck somewhere and broke it in attempt to free itself, the crab will probably be just fine. See above paragraph to make sure you have decent conditions.

If the crab lost it in a bad molt, it will probably survive. See two paragraphs up.

As long as the crab has one claw, it will eat just fine, and will regrow it in the next molt so long as your conditions allow the molt to be successful.

the categroy is anthropod
I think it's a crustacea.
maracala
crabs!
a crab belongs to the Arthropods group
A crab is a an Arthropoda of the subphylum Crustacean. The class is a Malacostraca and the order is Decapoda.
Crustaceans
A crab is in the group of Arthropods.
Phylum Arthropoda.

of course, it has nostrils

no dey dont
No

First of all, the prey of the blue crab would decrease in population and the predators would increase in population. As a result the whole food chain would be thrown off.

When male and female crabs reproduce, they assume the doubler position, which is when the male carries the female. Mating lasts about five-and-a-half hours, but the crabs may stay in this position for up to three days afterward. The female stores the male's sperm on the underside of her abdomen, where it will be used for two more spawnings that occur within her three-year lifespan. The females migrate to slightly saltier waters after mating and attach between 100,000 to two million eggs to the sperm stored under the abdomen. The incubation period lasts about two weeks, until the crab larvae hatch and are released into the ocean to fend for themselves. For the next 40 days, the crab larvae continue to grow until they reach the adult crab stage.

Source: http://www.ehow.com/how-does_4781305_crabs-reproduce.html

probably never ever.

a ten legged crab is called a decacrab

as big as a foot on some reports in south America

One fathom is equal to 6 feet. Therefore, 70 fathoms is equal to 70 x 6 = 420 feet.

no, because then those gills gills would need gills and they would need gills and so on, so on. They have specialised cells instead.

this is just a guess i think over 500000

No,they have no backbone so are therefore invertebrates.