2006-09-06 15:29:40 · 9 answers · asked by pmcm1994 1 in Social Science ➔ Other - Social Science
They have no lungs. Instead the blood flowing close to the worm's surface absorbs oxygen and releases carbon dioxide directly through the moist skin (called the cuticle). For this reason earthworms can live for some time in water if the oxygen supply is adequate. They don't drown per se, but they may suffocate if the oxygen content is low. This is why worms leave the soil and crawl out on the sidewalk during a heavy rain—they are seeking oxygen.
2006-09-09 15:39:16 · answer #1 · answered by pbuchta 3 · 2⤊ 0⤋
If it rains enough the ground becomes saturated with water. This causes two things. The worm can no longer take in air very well and, in essence, can drown. The wet dirt also becomes very very heavy and almost impossible for them to move through and they can stand a danger of crushing. Between the two it is much better to come topside.
2006-09-06 15:37:09 · answer #2 · answered by sam21462 5 · 0⤊ 0⤋
eathworms ought to have moist pores and skin to respire yet even as there is too a lot they arrive to the exterior so as that they dont drown of their holes. theres no air down there even as its comprehensive of water.
2016-11-25 01:35:31 · answer #3 · answered by crooker 4 · 0⤊ 0⤋
no one likes to drown in a ground saturated with water and shifts everytime you do.
2006-09-06 15:35:07 · answer #4 · answered by Anonymous · 0⤊ 0⤋
to avoid getting drown
2006-09-06 15:34:43 · answer #5 · answered by Pedro ST 4 · 0⤊ 0⤋
So they don't drown in the ground.
2006-09-06 15:32:27 · answer #6 · answered by Anonymous · 2⤊ 0⤋
I dont know but it's sick when they are all over the concrete
2006-09-06 15:38:33 · answer #7 · answered by Tiffany B 2 · 1⤊ 0⤋
thirsty
2006-09-06 15:31:21 · answer #8 · answered by tanya 6 · 0⤊ 0⤋
If they didn't, they would drown.
2006-09-06 15:35:24 · answer #9 · answered by want2know 1 · 0⤊ 0⤋