Marine crabs breathe underwater using gills, which are located in a two cavities under the carapace. True land crabs have enlarged, modified cavities that act like lungs so that the land crabs can breathe air
spiracles are the respiratory structure of crab
Yes, they are gills.
by antennary gland
Book gills
excretory organ of housefly
The skin is both a sense and excretory organ.
nephridia is the main excretory organ of annelida
The main organ in the excretory system is the kidney. The kidney is the main organ that controls the excretory systems for vertebrates. It is also part of the Urinary system which is part of the excretory system.
skin, lung, kidney
Why is the kidney the major excretory organs?
The excretory organ of agama lizard
The kidneys
The Kidneys
shrimp
cnidarians do not have excretory organs .mouth is only excretory organ to them
placenta