Experimental protocol for snail crawling, methods for snail crawling

Catch two snails of about the same size first, prepare a smooth paper and a rough paper Place the two snails on the smooth paper and the rough paper respectively and let them crawl. (Or you can put a vegetable leaf in front of them) Observe carefully, carefully record the data of the snail crawling, and compare them to conclude that: . . Of course.

Here's the idea. The language should be organized by itself. ）

The ventral surface of the snail has flattened vertical and wide slender, large abdominal feet, which move slowly and secrete mucus under the feet to reduce friction to help walking.

When a snail crawls, it also leaves a trail of mucus on the ground, which is a fluid secreted in its body, even if it is on a knife edge, it is not dangerous. Snails like to burrow into loose humus soil to inhabit, lay eggs, regulate the humidity in their bodies and absorb some nutrients, which can last up to 12 hours. Snails like to live in a dark and damp, loose and humic environment, which is diurnal and nocturnal, most afraid of direct sunlight, and sensitive to environmental reactions.

Extended information: The whole body of the snail includes eyes, mouth, simple feet, shell, antennae and other parts, the snail has a fragile, low conical shell, the head has two pairs of antennae, the last pair of longer antennae has eyes at the top, the ventral surface has flat and wide gastropods, slow movement, secrete mucus under the feet, reduce friction to help walking, mucus can also prevent ants and other general insects.

The way a snail crawls is through the foot.

The snail is the slowest walking animal in the world, and the snail's abdomen has a movable fleshy foot, which is called gastropod, which is equivalent to the snail's foot; The snail relies on the muscles of the gastropod to make the body move, and at the same time, a very sticky mucus will continue to flow out under the gastropod to help crawl, and when the mucus dries, it will leave a bright line under the row-shaped cover, and the snail moves in this way.

The snail has flat and wide gastropods on the ventral surface, which moves slowly, secretes mucus under the feet, reduces friction to help walking, and when the snail crawls, it will also leave a line of sticky fluid on the ground, which is a liquid secreted in its body, even if it walks on the blade of a knife, it is not dangerous.

Snails like to burrow into loose humus soil to inhabit, lay eggs, regulate the humidity in the body and absorb part of the nutrients, the time can be as long as 12 hours, snails like to live in a dark and damp, loose and humic environment, day and night, most afraid of direct sunlight, sensitive to environmental reactions.

Morphological characteristics of snails

Snails are invertebrates, molluscs, gastropods, lung spira, snails; Snails are the animals with the most teeth, but their teeth are not "three-dimensional teeth", and despite having tens of thousands of teeth, they cannot chew food because they use a toothed tongue, a ribbon-like structure covered with teeth, to crush food so that it can be digested.

Over the course of life, their tiny teeth slowly wear out and dull and are replaced by new, sharper teeth, which are excreted close to the breathing holes, called stomata, which excrete feces on its body, leaving it on the ground through gastropods and mucus.

1. Snails have flat feet on their abdomen, and they move their muscles like waves when crawling, secreting mucus as they crawl.

2. The snail's abdomen has a wide and thin transverse fold, and the tail is very pointed, which is its feet. When a snail crawls, it attaches its feet to other objects. Relying on the ups and downs and flexes of the abdominal muscles of the foot, it moves forward.

At the same time, it also has a gland on its feet, called foot glands, which secretes a type of mucus to help it crawl.

Hello dear, snails crawl with gastropods. The snail usually clings to other objects with its gastropods and uses its abdominal muscles to wriggle in waves, and then it can crawl, and it usually leaves behind a protective line of mucus when it crawls, so that it is not dangerous to walk on the blade. If the temperature is lower than 5 or higher than 40, it is generally possible to freeze to death or be heated, and flooding is also easy to cause suffocation of the snail, but its brother Huai Chen's survivability is very strong, and the baby snail after birth does not need to be taken care of by the mother, it can crawl and feed, and has self-feeding survival.