Do earthworms have the senses of hearing, sight, smell, taste, and touch

Because there are many varieties of earthworms, their living environment and food are also different, so their living habits are also slightly different, but they like temperature, moisture, dark, breathability, light, salt, shock, and spicy food are common.

1. Likes temperature and is afraid of cold and heat.

Earthworms like to live in warm environments, and they are afraid of both cold and heat. In 0 -5 dormant, 32 or more stop growing, die above 40, the appropriate temperature is 15 -30, the best temperature is 20-25, we want to obtain good breeding benefits, it is necessary to maintain the best temperature of 20-25 breeding environment all year round.

2. Likes moisture and is afraid of soaking.

Earthworms prefer to live in a humid environment and should not be too dry, but they should not be too wet to soak (except for water earthworms). The humidity of the substrate includes two aspects, one is the humidity of the base soil, the other is the humidity of the air humidity, the humidity of the general substrate is required to be 40%-60%, (it is good to hold the fingers of the base soil to see the water and not to flow down), and the relative humidity of the air is adjusted to 60%-80% as well.

3. Likes dark and is afraid of light.

Earthworms like to live in the dark, usually burrowing under the soil layer to feed, burrowing into the base material to feed, and some crawl out of the ground to feed at night. Because he is afraid of light, he has developed the habit of lying day and night. Although earthworms have no eyes and cannot see light, their whole body is full of photoreceptor organs, and strong light is extremely unfavorable to the growth and reproduction of earthworms, so earthworms are always active in the dark, and the breeding environment should be selected in a dark place.

4. Likes sweet and is afraid of spicy.

Earthworms like to eat sour, sweet and fishy ingredients, such as rotten tomatoes, watermelon rinds, rotten fruits, fish washing water, etc. The most afraid of eating spicy food, such as green onions, garlic, chili peppers, etc., should be fed with the city's domestic garbage earthworms should pick out the spicy food and then feed.

5. Quiet and shock-resistant.

Earthworms prefer to live in a quiet environment and are most afraid of vibrations. Farms should be located in quiet places. Do not shake or frequently turn the base soil up and down. Frequent vibration will adversely affect the growth and reproduction of earthworms.

6. Acid-loving and salt-inducing.

Earthworms prefer to live in acidic or neutral soils, or in environments with water sources, and are most afraid of approaching saline, alkaline soils, or saline water sources. If you encounter saline soil or water sources, adjust the pH. The alkali should be adjusted with ammonium dihydrogen phosphate, and it can also be adjusted with 2% carcoal water, otherwise the earthworm can not survive.

I've experimented, and vision — none, has photoreceptors, but not vision.

Sense of smell – yes.

Hearing – not at all.

Taste – Yes.

Tactile – definitely there (frightened to huddle).

Earthworms have a sense of smell, taste, and touch, and have no sense of sight or hearing, but they can feel light and vibration.

Earthworms are the most common annelids in rural areas and live in moist, shady underground. Due to its life in the soil, its senses are underdeveloped and it has no eyes, and its sensory functions are mainly performed by sensory cells scattered in the epidermis.

For example, some sensory cells gather together to form small protrusions on the surface of **, or piles of sensory cells form a nodule and extend long protrusions to the surface of the body, which may have the function of touch and chemical sensation.

There are also independent photoreceptor cells in the epidermis, which are crystalline-like and have protrusions that enter the subepithelium, and are connected to cranial nerve branches, which respond to the intensity of light.

There are also abundant nerve endings on the body wall, which also have tactile functions.

I've experimented, and vision — none, has photoreceptors, but not vision.

Sense of smell – yes.

Hearing – not at all.

Taste – Yes.

Tactile – definitely there (frightened to huddle).

Visual – None.

Sense of smell – yes.

Auditory – none.

Taste – Yes.

Tactile – Yes.

Earthworms have no visual or auditory organs, but they can sense light and vibration and have a sense of smell.

Lower coelenterates do not have hearing, but have a centrally centered nervous system.

No, only the sense of touch, everything else is degraded.