Crabs can be found miles out at sea and my friend brought a crab home once and lost it in the house for a week and then found it and it was fine. How do they breathe, or do they?
2006-06-28 05:18:47 · 6 answers · asked by Mike B 2 in Science & Mathematics ➔ Biology
Crabs have gills, but they usually can't stay on land for too long because they must keep their gills moist in order to breathe. They also have plates around their gills that protect them from losing moisture.
Crabs that live on land live in cool, moist places so that they can breathe. They also drink water from the ground, or dew or water vapor, and can store it in their bladder or blood.
They do not have lungs.
2006-06-28 05:23:54 · answer #1 · answered by sous_lepontmirabeau 3 · 1⤊ 0⤋
Smaller crustaceans respire through their body surface by diffusion, and the larger crustaceans respire with gills
2006-06-28 12:43:32 · answer #2 · answered by Handsome 6 · 0⤊ 0⤋
Yes, they're on either side of the body, just under the top shell.
2006-06-28 12:22:15 · answer #3 · answered by smartypants 2 · 0⤊ 0⤋
they breathe thru specialized lung sacs. that's why they can move in and out of the water.
2006-06-28 12:23:07 · answer #4 · answered by Man_With_No_Name 5 · 0⤊ 0⤋
i have eaten many crabs
they have a membrane????
it is iffy iff they breathe the air
how could they do that
and live so long underwater eh?
2006-06-28 12:22:51 · answer #5 · answered by charlaxhice 2 · 0⤊ 0⤋
they have both(i think)
2006-06-28 12:23:25 · answer #6 · answered by everyone's friend 2 · 0⤊ 0⤋