Are the excretory and stomata of a snail a hole?

The excretory orifice and respiratory orifice of the snail are not one pore and are located as shown in the figure below: <>

The snail's lung is actually a highly vascularized cavity located in the mantle within the shell. It is connected to the outside world by a tube with an opening. This tube is called a siphon and is located close to the front of the snail.

The muscles inside the mantle suck in and out of air through a siphon. The mantle is often between the feet or visceral masses, forming a cavity that communicates with the outside world, which is called the mantle cavity. The respiratory organs of the snail are hidden in the mantle cavity, and sometimes through the snail's shell, you can faintly see the dense network of pulmonary blood vessels under the shell, mostly on the anterior side, near the direction of the head, which is the location of the mantle cavity.

The mantle cavity creates 1 opening at the mouth of the shell, called the breathing hole, which is where the gas enters and exits. If you look closely, the breathing holes will often open and close, just like a snail's nose for breathing; When the snail is retracted into the shell, it will still leave the opening of the breathing hole at the mouth of the shell to breathe.

Snail excretion is excreted close to the breathing hole, which is called a stomata. It will drain its feces on its body, eventually leaving it on the ground through its gastropods and mucus.

The respiratory organs of the snail are hidden in the mantle cavity, and through the snail's shell, you can see the dense network of pulmonary blood vessels under the shell, most of which are located on the anterior ridge side near the head, which is the location of the mantle cavity.

The mantle cavity creates an opening at the mouth of the shell, called the breathing hole, which is where the gas enters and exits, which is the snail's stomata. When the snail is retracted into the shell, the opening of the breathing hole is still left at the mouth of the shell to allow for halder infiltration.

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The snail's stomata (see the figure below for the location of the breathing holes).

The snail's breathing hole is hidden in the mantle cavity. Through the snail's shell, a dense network of pulmonary blood vessels can be seen under the shell, mostly located anteriorly near the head, which is where the mantle cavity is located. The mantle cavity creates an opening at the mouth of the shell, called the breathing hole, which is where the gas enters and exits, i.e., the snail's stomata.

When the snail is retracted into its shell, it leaves the opening of the breathing hole at the mouth of the shell for breathing. <

The snail's breathing hole is hidden in the mantle cavity. Through the snail's shell, a dense network of pulmonary blood vessels can be seen under the shell, mostly located anteriorly near the head, which is where the mantle cavity is located. The mantle cavity creates an opening at the mouth of the shell, called the breathing hole, which is where the gas enters and exits, i.e., the snail's stomata.

When the snail is retracted into its shell, it leaves the opening of the breathing hole at the mouth of the shell for breathing.

When two snails meet, they touch each other with their antennae, and then their heads face each other, their bodies are connected side by side, and the positions of each other's reproductive cavities are connected. After a moment's pause like this, the genital parts suddenly reverse, and each other inserts the arrows into each other's genital holes.

Generally speaking, the snail's handover is very long, each handover takes about 2-3 hours, and sometimes it can be as long as 4 hours.

After mating, the fertilized egg is produced outside the body through the genital orifice. The eggs are laid in the soil several millimeters deep in the ground, or under rotten wood and fallen leaves. The larvae of the snail develop in the egg shell, and the hatchling is already the appearance of a snail.

The mantle cavity of the <> snail has 1 opening at the mouth of the shell, called the "breathing hole", which is where the gas enters and exits. The breathing holes often open and close, like a snail's "nose" for breathing. When the snail is retracted into the shell, the opening of the breathing hole is left at the mouth of the shell to facilitate breathing.