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Exoskeleton: Crayfish have a hard shell, and no bones. That makes crayfish invertebrates (no spine).
Gills: Crayfish respire underwater through gills, where humans use lungs.
The circulatory system is the second one, the reason for this being that crayfish have no blood vessels (and humans obviously do).
What else can I help you with?
Of the crayfish systems what two are the most unlike the humans systems?
The excretory system of crayfish, which involves specialized structures called green glands for waste removal, is unlike the human excretory system, which primarily relies on the kidneys. The respiratory system of crayfish, which involves gills for gas exchange, differs from the human respiratory system that uses lungs.
Of the body systems studied which two are most unlike the related human system cray fish?
The skeletal system and the digestive system.
Which country buys most of Australia's crayfish?
China buys most of Australia's crayfish.
Who buys most of Australia's crayfish?
China buys most of Australia's crayfishChina buys most of Australia's crayfish
Unlike most tigers this one preferred human flesh over that of deer?
Direct
Where is the most crayfish production?
Lousiana supplies more than 90% of the crayfish production
Which two are most unlike the related human system?
1. The Skeletal System 2. The Digestive System
What is the worlds most expensive crayfish?
bioootch
What is the scientific name for crayfish?
There are several hundred different species of crayfish around the world. The most common one in US seafood markets and restaurants is the red swamp crayfish, Procambarus clarkii, most of which come from Louisiana.
Is the crayfish most vulnerable to its enemies from the dorsal or ventral side why?
The dorsal side is its back, and the ventral side is its 'stomach'. The crayfish is vulnerable on its soft underbelly - the ventral side.
How do you spell crowdad?
Crawdad, but most people will use the word 'crayfish'.
What is the problem of keeping crayfish as a pet?
One problem with keeping crayfish as pets is that most crayfish can not be in the same tank. The biggest one usually becomes dominant and injures or even kills the others. Another problem is that if a crayfish and their tank are not properly taken care of it can begin to smell very bad.
