CATDOLL : CATDOLL: Can earthworms be placed in water? (Can earthworms be placed in water? Why?)

1. Why can’t earthworms live in water?

No, earthworms can only live in moist places. Moist does not mean in water. In water, they will die due to lack of oxygen.

2. Will earthworms die if placed in water?

Earthworms will die in water.

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.

However, earthworms will also 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.

3. Earthworms can live in water, is that correct?

Wrong, earthworms cannot live directly in water

Earthworms cannot live in water. Earthworms are terrestrial animals. If they do not get enough oxygen in water, they will die. Earthworms' living environment Earthworms belong to the class Chaetopoda and the order Oligochaeta. They usually live in dark and moist soil 10-30 cm deep in moist, loose soil rich in organic matter. Especially in fertile gardens, vegetable gardens, cultivated land, ditches, rivers, ponds, channels and sewers near canteens.

4. Can earthworms live in water for a long time? More than a week?

Can't

Earthworms cannot stay in water for a long time. Some earthworms can stay in water for 3 days and continue to wriggle, while others can stay in water for only 2-3 hours. Earthworms prefer dark, moist and quiet environments, and are mostly concentrated in the surface soil within 20cm deep.

In terms of temperature, the activity temperature range is 5-30℃, and the suitable temperature is 20-27℃. In terms of food, it mainly feeds on dead grass, vegetable scraps, rotten leaves, melon and fruit peels, crop straw, etc. In terms of humidity, 40-60% is appropriate (soil humidity), not too dry or too humid.

5. Why can’t earthworms be kept in water for a long time?

Because earthworms are terrestrial animals, although they like to live in dark and humid areas, they cannot live in water. Like other terrestrial animals, earthworms rely on lungs to breathe air, and they cannot have gills like aquatic animals to filter air in the water. Therefore, if earthworms are soaked in water for a long time, they will be drowned like other terrestrial animals.

6. Can earthworms live in water?

Earthworms live underground and feed on soil. If there is no soil in the water, they will starve to death and cannot live in water.

7. What will happen if earthworms are left in water for a long time?

Earthworms cannot survive in water for a long time and will drown.

Earthworms mainly live in the surface layer of soil rich in organic matter. Earthworms are saprophagous, mainly feeding on decaying plants or other organic matter, and will swallow soil and sand to obtain the organic matter inside.

Earthworms do not have respiratory organs, but have a large network of microvessels distributed on their body surface. They breathe through gas diffusion on the body surface. Earthworms reproduce sexually and are hermaphrodites.

8. How long can earthworms survive in water?

They can only live for 20 to 30 minutes because earthworms use lungs to breathe.

Earthworms are cold-blooded invertebrates. Changes in external temperature have a huge impact on the activity and survival of earthworms. Generally, earthworms are more active at temperatures between 20 and 27 degrees Celsius. Earthworms are hermaphroditic, which means they can reproduce on their own. Earthworms do not have lungs, and they need to capture oxygen through their skin during breathing, so soil moisture conditions have a great impact on earthworms.

For example, we often see a lot of earthworms on the roadside on rainy days, partly because they need to leave the flooded area to breathe. On the contrary, if the soil is dry, earthworms may also face the threat of death, because their skin is very easy to die after drying. Another point is that earthworms are afraid of light. Direct light can cause them to paralyze and lose their ability to move, which is why earthworms like damp and dark places.