Earthworms have no heads, and earthworms have several heads

1.Is the pointed end of an earthworm the head, or is the rounder end the head?

The rounded end of the earthworm is the head.

2.The front and back of the earthworm's abdomen** are lighter in color? What is raw in its abdomen?

Earthworms have lighter abdomen in color. There are bristles on the abdomen.

The earthworm has a lighter colored ring band at a distance of () cm?

Near the head. The distance should be measured by yourself, and each one is different 4Earthworms are suitable for moving on the surface of () (optionally "rough" or "smooth"), what is the mode of movement?

Rough. Wriggle.

5.Do earthworms respond to sound? Do earthworms have a sense of hearing?

No response. Earthworms have no sense of hearing.

6.Placing the earthworm on a dark cardboard box and shining a flashlight on the earthworm head-on, what is the reaction of the earthworm?

Movement to a place where there is no light.

7.Do earthworms respond to bright light? Does it like to live in bright light?

Earthworms are afraid of light and prefer darkness.

Yes The earthworm has a little thicker part of its body than its whole body, and the side it gets close to is the head. If you cut it in two, it will become two, and earthworms are hermaphrodites, but I don't remember that it was allogeneic fertilization.

Yes But if all 2 stages survive and become 2 earthworms, one can reproduce.

Earthworms have 1 head.

Earthworm is one of the annelids, there are more than 3,000 species of earthworms in the world, and there are more than 200 species in China. There are ringworms, Aisheng worms, heterolip worms, dura worms and other varieties widely distributed throughout the country.

Earthworms are rich in nutrition, rapid reproduction, miscellaneous diets, and high yield in artificial breeding. The economic benefits are good, the earthworm digs holes to loosen the soil, decomposes organic matter, creates good conditions for the growth and reproduction of soil microorganisms, and plays a special role in soil improvement, eliminating pollution, protecting the ecological environment, material cycle, biodiversity, etc.

Ring band differentiation: The earthworm has a thick, ring-like ring at the back end of its head, which is lighter in color and has no ring on the tail.

Observation and differentiation: In appearance, the head of the earthworm is slightly round and large, and the color is darker, while the tail is slightly pointed and thin; Place the earthworm in the palm of your hand, and the direction of crawling is the head of the earthworm; Pick the earthworm from the middle, because the earthworm crawls mainly by the muscles at the front end, so it is the head that can be lifted upwards, and vice versa, the tail.

1. Ring zone differentiation method

The head of the earthworm is closer to the ring, while the tail is farther away from the ring. Adult earthworms have a thick, ring-like structure near the front of their body, called a ring, which is lighter in color. The ring band is also the reproductive ring of the earthworm, and since the earthworm is hermaphroditic, each earthworm has a ring band.

2. Observation and distinction method

1. In terms of appearance, the head of the earthworm is slightly round and large, the tail is slightly pointed and thin, and the color of the head is darker than that of the tail.

2. Put the earthworm in the palm of your hand and observe which direction the earthworm climbs, and the direction of climbing is the head of the earthworm.

3. Pick up the earthworm from the middle, because the earthworm crawls mainly by the muscles at the front end, so the head can be upturned, and the opposite end is the tail.

<>1. There is a ring belt at the back end of the head that is not obviously decomposed, that is, one end close to the ring belt is the head, and the other end is the tail;

2. The earthworm crawls mainly by the muscles at the front end, picking it up from the middle, and the one that can be upturned is the head, and the opposite end is the tail;

3. The head of the earthworm is slightly round and large, the tail is slightly pointed and thin, and the color of the head is darker than that of the tail;

4. Put the earthworm in the palm of your hand and observe which direction the earthworm climbs, that is, that direction is the head.

<> earthworm head generally refers to traditional Chinese medicinal materials such as "fengfeng" (also known as copper yun, huiyun, huicao, hundred branches, and hundreds of kinds of Xinheng). The origin of the name of the earthworm head: the root head of the Chinese medicine is made of an obviously dense tan hengzhi ring pattern left after the petiole falls off, and it is called the earthworm head because it resembles the head and neck of an earthworm.