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Anonymous users2024-02-13In daily study, work or life, everyone will inevitably come into contact with or use composition, through which we can gather our scattered thoughts together. In order to make it easier and more convenient for you to write an essay, the following is a 300-word essay on observing snails that I have compiled for you, welcome you to learn from and refer to it, I hope it will be helpful to you.
One afternoon, as I was wandering around the courtyard of my house, I suddenly saw a few snails in the vegetable patch, and I was curious, so I took a closer look.
The little snail has two antennas on its head. Antennae, I think its eyes may be on its antennae. I went to ask my mother, and she couldn't tell me to check the information.
It turns out that its eyes are at the top of the antennae, and the snail has two pairs of antennae, one pair of large and one pair of small ones, and there are a total of 4 small black dots on the antennae, that is, 4 eyes.
Look at it carrying a large, round house with round patterns on its back and slowly moving around the garden. It has no feet and can walk? I wondered, I thought, how can a snail walk without feet?
I turned the snails over and put them on the ground to look at them, but they quickly retracted into the little house. I saw a white mark left by them crawling over the place, and I couldn't help but wonder, what is the white mark of the snail?
I really couldn't think of it, so I went online again to check the question of how snails walk. It turns out that the snail has a movable fleshy foot in its abdomen, called gastropod, and it walks with gastropod.
As for the white marks after the snail walks, there is a gland on the snail's gastropod that secretes a mucus that helps the snail crawl faster. In this way, a white mark is left where the snail crawls.
Curious, I put a few snails on the ground to see if they could climb fast. I asked them to climb for a minute, using a ruler to measure, and the fastest one was only 14 centimeters, and the slowest one was only 10 centimeters. Dad laughed and said that the snail must not be able to move an inch on the glass, right?
I didn't think so, so I put the snails on the glass, but they still got up unhurriedly, it seems that the mucus they secrete plays a major role, and no matter how smooth it is, it can't be difficult for them. I also measured the crawling speed of the snail on the glass. They can climb a centimeter a minute and have to rest for a while, so they are really slow.
Look how amazing this little snail is! I think there's a lot more to discover! Let's find out!
Today, I lie on the edge of the grass again, in infinite silence, forgetting the world and forgetting myself. >>>More
Your mail was delivered and signed on 2011-09-19 14:02:00 (Xiangxiang City Fanjiang Post Office). >>>More
This is a fine drill snail. Order: Gastropoda, Drill Snails. Aliases: long taper snail, slender drill snail. Distribution: Hunan, Fujian, Guangxi, Guangdong, Hainan Island, Taiwan, Hong Kong, Macau, Southeast Asia.
Snail is not a biological taxonomic name, but generally refers to all terrestrial species of the class Gastropoda. >>>More
Natural. The snails generally hibernate by hibernating, and the snails hibernate not because of cold weather, but because of lack of food, in order to save energy. Artificially cultivated snails are generally prevented from hibernation by warming and feeding sufficient feed, so as to achieve the purpose of winter breeding and winter raising. >>>More