CATDOLL : CATDOLL: Will earthworms die if there is too much water? Why? (Will earthworms die if there is too much water? Why?)

1. Why do earthworms die if left in water for a long time?

Because earthworms have no lungs or gills, they breathe through their skin, and their skin must be kept moist to allow oxygen to dissolve and enter their bodies. Therefore, they like to move in warm and humid soil. However, earthworms will drown if they stay in water for a long time. Similarly, when it rains, the mud holes where earthworms hibernate are filled with water. If they do not crawl out of the ground, they will also drown.

2. Why do we need to drip water on earthworms?

It is to keep the surface of the earthworm's skin moist so that the earthworm can survive longer.

Earthworms breathe oxygen in the air. Oxygen first dissolves in the mucus of the body wall, then penetrates into the blood in the capillaries in the body wall, and the carbon dioxide in the blood is also discharged from the body through the body wall. Therefore, earthworms breathe with moist body walls, breathing oxygen in the air. During the experiment, use a cotton ball soaked in water to gently wipe the body of the earthworm at any time, the purpose is to keep the body surface of the earthworm moist and maintain its normal breathing.

3. How long can earthworms survive in water? Will earthworms die in water?

Earthworms can live in water for more than 48 hours, which is amazing. I was very surprised at the time. Later, I conducted several more experiments and finally found the reason. It is because of the oxygen content in the water. The earthworms in the water with high oxygen content live for a long time, while the earthworms in the water with low oxygen content all die within a few hours.

Also, when you take out the earthworms that have stayed in the water for a long time, they look half-dead and not very energetic, but each one is alive. After taking them out, put them in the earthworm bed and cover them with a layer of soil, and they will recover in an hour.

4. How long can earthworms live in water? Will earthworms die in water?

If they stay in water for a long time, they will die. Because earthworms do not have lungs and gills, they exchange gases through their body surface. Oxygen dissolves in the moist film on the body surface, then penetrates the cuticle and epithelium, reaches the microvascular plexus, and is combined with oxygen by hemoglobin in the plasma and transported to various parts of the body.

The earthworm's epithelium secretes mucus and the dorsal pore discharges body cavity fluid, keeping the body surface moist at all times. The skin must be kept moist so that oxygen can dissolve and enter the body. Therefore, they like to move in warm and humid soil.

5. How do earthworms drink water?

It is very troublesome to raise earthworms. Too much water will cause them to run away and die, and too little water will not work. So whether earthworms need water depends on the season. In winter, spring (early spring, mid-spring) and autumn (mid-autumn, late autumn), you don't need to feed them water. Just provide fruit peels and vegetable leaves, but don't expose them to the sun all year round. But in late spring, summer and early autumn, you have to feed them water, and the standard is to make sure they are neither dry nor wet.

6. Scientific record: What will be the reaction of an earthworm if it is placed in water?

The earthworm will struggle in the water, but after a short while it will break into two pieces and eventually die.

7. Why do earthworms die if left in water for too long?

Because earthworms have no lungs or gills, they breathe through their skin, and their skin must be kept moist to allow oxygen to dissolve and enter their bodies. Therefore, they like to move in warm and humid soil. However, earthworms will drown if they stay in water for a long time. Similarly, when it rains, the mud holes where earthworms hibernate are filled with water. If they do not crawl out of the ground, they will also drown.