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Crustaceans

Usually considered as a subphylum, Crustaceans comprise a group of arthropods including crabs, crayfish, lobsters and shrimp. Most crustaceans are aquatic animals, though some are terrestrial, parasitic and barnacles. Crustaceans have a chitinous exoskeleton, segmented body, and paired jointed limbs.

1,209 Questions

How do crustaceans respond to their environment?

Crustaceans use their antennae to discern changes in their environment. They can sense changes in water pressure with their antennae. They use these because their hard outer shell does not have any sensitive nerve endings.

What is the purpose of krill oil?

"The purpose of taking a Krill Oil Supplement is the nutritional benefits that you receive from it, like Omega 3 Fatty Acids, and antioxidants. Krill Oil can also help with severe pelvic pain during a woman's period."

Where do lobsters live in the ocean zones?

Adult lobsters live from the shoreline to beyond the continental shelf. Lobster eggs and larvae have a planktonic phase usually near the surface, for up to about 10 weeks, are subject to irregularities of ocean currents and can get carried beyond this zones. Lobsters also evidence the phenomenon of long distance migration which they accomplish in single-file formation; in these cases they still remain fairly close to the shore. In winter times the females may prefer deeper waters for warmth because of reproductive considerations.

Why are mandibles removed last on a crayfish?

mandables are removed last because attached to them are the maxillae and aixilliped, so those would be removed before, leaving the mandibles last.

What are the 2 main body parts of a crayfish?

1. Cephalothorax (Head region)

2. Abdomen (Thoracic region)

Are prawns French?

Only the ones that wear berets and spout existentailist philosophy whilst smoking and riding their bicycle to the whorehouse.

What kind of tails do lobsters have?

The tail of the lobster is often intended to indicate the muscular, chitin-plated articulated segmented abdomen (which ends up with butter and lemon on your dinner plate); which has six segments and bears pleopods (swimmerets). At the terminus of the abdomen are the uropods (on the outside), which together with a telson (center) form the lobster's tail fan, which among other functions assists in locomotion in an escape behavior shared by other decapods called the caridoid escape reaction.

What are some water invertebrates?

Some invertebrates that live in the water are:

* Shrimp * Lobster * Clams * Jellyfish * Starfish * Crabs * Mollusks * Snails

How many antennas does a crustacean have?

Crustaceans are the only arthropods with two pairs of antennae

Does prawn toast have prawns in?

Yes, the prawns are blended into a paste before being spread over the toast.

Are pill bugs edible?

Yes, pill bugs are edible and taste much like prawns when cooked.

Why is the anterior part of a crayfish called the rostrum?

The anterior part of a crayfish is called the rostrum because it is a structure that protrudes from the head resembling a beak or snout, much like a rostrum on a ship. It helps the crayfish with sensory perception and sometimes functions in defense or capturing prey.

Can a crayfish live in a cycled six gallon tank?

yes they can as long as you have enough space in there and it has enough water

What is the meaning of decapod?

The word means 'ten-legged.' There is an order called 'decapoda' which consists of the lobsters and crabs. The word is also used to describe a wheel arrangement in steam engines.

What is a blind shrimp?

A blind shrimp is an arthropod often found in cave systems. They live in fresh water and get swept into the cave where there is no light. Over many generations, they lose their eyes because they don't need them. Hence, blind shrimp.

Do lobsters breath oxygen?

Crabs Breathing With gills as fish do, and they breathe on land by keeping their gills moist so oxygen in the air can still be absorbed.

Why do coconut crabs live in trees?

Coconut crabs do not live in trees they live in borrows under trees. The reason they go up in the trees is to retrieve the coconuts up there. After the get the coconuts down they open them with their powerful claws and eat the coconut.

Can a prawn bite a human?

The answer is ....NO! The PRAwn may look like it has the claws but,its mouth is too small

DNG AKA DeathNoteGal

Can Tasmanian Crayfish grow in the US?

No. All species of crayfish which are not native to North America (European, Asian and Australian too) are susceptible to crayfish plague. The disease is caused by a water mould present in all America. Crustaceans die within few weeks of being infected.

What's more American crays are not only immune to the plague but also are carriers of the mould. This fact causes severe problems in Europe, where some American species were introduced (signal crayfish, swamp crayfish, belted crayfish) and now are increasing in number and range bringing European crays (bigger and of higher economical value) closer to the brink of extinction.

Do prawns defecate?

of course they defecate , and it smells gross some people EAT there defecate in places like Norfolk !!! When a person "de-veins" a prawn, they're actually removing the digestive tract, and essentially, the faeces.

What is the role of crustaceans in marine food webs?

They are scavengers, their planktonic larvae are a big food source.