Crustaceans

A crayfish is a kind of creature. It usually ives in damp and dark places. It feeds on dead or alive plants, frog eggs, insects, and small little fish. It also has a scientific name, which is called Procambarus clarkii. A crayfish is a territorial animal, and it fights over its own kind for a place to live in. It has six antennaes. The crayfish is related to the lobster and is not a fish. The little creature has a shell called exoskeleton, or what some people call the crafish's cuticle. It can also be called crawdad, crawfish. and crawdaddy. Come back soon for an upgraded answer! :)

When the lobster feels itself compressed within its shell, it retreats to a crevice in one of the underwater rock formations, sheds its shell, and grows a new one. When it outgrows this shell, it repeats the process and continues doing so until it reaches its maximum size.

During the stage when it is without its shell, the lobster is in great danger. A predatory fish may eat it, or a strong current may dash it against a rock. In order to grow, the lobster must risk its very life.

The exoskeleton on the crayfish is an adaptive advantage because it gives the crayfish support and protection. Unlike humans who have an internal skeleton, the exoskeleton protects the crayfish from its predators. In the case of support, the crayfish's ligament and muscles attach to the exoskeleton, which provides a structure for its internal organs and muscles. The internal skeleton, which provides support, does not provide the same protections as an exoskeleton; however, the exoskeleton also has its disadvantages such as molting. When the crayfish molts, it takes all the calcium out of its previous exoskeleton and holds it in two pockets in its head. The crayfish then flexes its posterior and pushes all the blood toward its anterior, cracking the shell. After climbing out, the crayfish is totally vulnerable to predators because it takes a couple days for the new exoskeleton, which has already developed but is thin and weak, to harden. The calcium stored from the old exoskeleton helps the new one harden, but it still takes a while.

The tagma of a crayfish is the Cephalothorax because it is made of two fused segments. The tagma of a crayfish is the Cephalothorax because it is made of two fused segments.

No, crayfish use claws and force to defend themselves

All crustaceans have 10 legs, 2 body segments, and 1 pair of antennae.

crayfish eat tadpoles,snails,small fish, and insects.crayfish also eat plants and waterweeds

krill, sea spiders, crabs, shrimp and more

Lobsters, are in fact, arthropods. Arthropods must have segmented body pieces and have an exoskeleton. While it may be true that that lobsters have shells, it does not have the mantle cavity that confirms that it is a mollusk.

Shrimp may be your answer.

they are used for fishing.

The chitinous covered "claw" on a decapod (lobsters and crayfish)

That is the correct spelling of the word "crustacean" (shelled animals).

yeah dude it is awesome

No land Hermit Crabs do not give you warts

yes

A marine crustacean that is like a shrimp and in the order Euphausiacea is called krill. Krill are found in each of the oceans on Earth.

Crayfish have muscles. They need them to move.

they both can go into a defensive mode

A small crustacean, very like a shrimp but smaller.

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No, you need lungs for that.

Large prawns are usually called 'jumbo prawns' or 'jumbo shrimp'. The words shrimp and prawn are used mostly interchangeably even though shrimp and prawns differ in their gill structure and are not the same creatures.

Normally prawns or shrimp which are more than 1 ounce in weight (raw) are called 'jumbo' prawns or jumbo shrimp. This is 16 prawns per pound.

They use them to Walk,Swim,Defend Itself,Smell,and catching prey.

You can for presentation, but they're a pain to peel once cooked.

Usually you'd peel them, making sure to remove the dark vein in the back of the prawn, and then cook.