nephridia
crayfish
Despite its name, the green gland is black.
It excretes excess water.
These filter out waste materials in the crayfish. They perform basically the same function as our kidneys.Read more: What_is_the_function_of_the_green_glands_in_a_crayfish
These filter out waste materials in the crayfish. They perform basically the same function as our kidneys.
The green tissue in the body cavity of the crayfish, lobster, or crab (called tomalley to connoisseurs) found below and rear of the base of the antennae, performs the same function as the pancreas and liver in humans (or the hepatopancreas in some other arthropods). Some sources say 'kidneys' but because the green organ is ducted into the digestive system (like the bile duct from the liver in humans) and because the gills are the primary excretory site for the higly toxic ammonia they produce as part of their nitrogen metabolism, that position might need further substantiation.
The primary excretory product of crayfish is that of a small amount of ink. Due to evolution present day crayfish no longer possess a large ink bladder. This is due to the shallow water they reside in and the extra weight the bladder would have put on the animal.
crustacea
They use the excretory organ green glands
cooked crayfish are sometimes moldy green with yellow in places where it has gone bad. before cooked they are orange with whiskers. green is when you should eat it and you should eat it fast or it will dry up and turn yellow.
Because of itssweat glands it makes it green and yellow
This idiot is wrong. Maybe if you paid attention in Ms. Roberts class you would know that grasshoppers have a closed ciculatory system and crayfish have an open with very dark blackish blood. They do not have purple or green blood.