Mimosa explanatory text

I believe many people have written compositions, especially expository essays, which play an important role in compositions. The center of the expository essay is clear and prominent, the article is scientific, and the language is accurate and vivid. So have you ever understood expository writing? Below is the mimosa explanatory text I compiled for you. You are welcome to learn from it and refer to it. I hope it will be helpful to you. Mimosa Explanation 1

There are many flowers on the balcony of my house, such as "chrysanthemums, spider plants, Milanese, asparagus and mimosa." Among them, my favorite is mimosa, which is on Sunday Mom just bought it from the flower market.

Mimosa is about 15 centimeters tall, with thin, long, green leaves, and a thin stem in the middle. The leaves on both sides of the stem are symmetrical, like bird feathers, delicate and beautiful!

Mimosa is very timid. Once when I was watering it, I accidentally touched the mimosa, and its leaves would slowly close up, like a shy little girl, very cute! After a while, when I looked at it again, the leaves returned to their original appearance. I couldn't help but touch the leaves of the mimosa hard again, and the mimosa lowered its head shyly. Its stem also slowly drooped, and the leaves adjacent to it would completely close.

Why are mimosa "shy"? I was puzzled and finally found the answer in the book "One Hundred Thousand Whys". It turns out that there is an enlarged organ called the "leaf pillow" at the base of the petiole of Mimosa pudica. There are many parenchyma cells growing in the leaf pillow, and these cells are very sensitive to external stimuli. Once the leaf is touched, the stimulus is immediately transmitted to the leaf pillow. At this time, the cell fluid in the parenchyma cells begins to flow into the intercellular space, thereby reducing the expansion ability of the cells. The pressure between the cells in the lower part of the leaf pillow is reduced, resulting in leaf closure and petiole drooping. phenomenon. After a few minutes, the cell fluid gradually flows to the leaf pillow, and the leaves return to their original appearance.

Every night, the leaves of Mimosa will automatically close up, and the next morning, the leaves of Mimosa will all unfold again. My mother told me that mimosa has a special function: it can predict earthquakes. Mimosa leaves usually open during the day and close at night. If it closes during the day and opens at night, an earthquake is likely to occur in this place!

Mimosas are so amazing! By observing mimosa, I learned a lot and brought me a lot of happiness! Mimosa Explanation 2

Have you ever seen a plant? As long as you touch it lightly with your hand, it will fit together like a shy little girl. I have seen this kind of plant before! It is "Mimosa".

I saw this kind of plant at my classmate’s house. There are dozens of leaves on both sides of its stem, which are oval and symmetrical, like pieces of feathers, and like children lining up. I touched it lightly with my hand and the leaves closed. I wondered curiously: Will it open again?

So I waited patiently for a minute or two, and the leaves of the mimosa slowly opened again and returned to their original shape. It was so interesting! Is Mimosa really shy? After returning home, I couldn't wait to open the encyclopedia. Oh, it turns out that Mimosa's hometown is in tropical Brazil, where it often winds and rains. In order to protect itself, Mimosa closed its leaves. Over time, it It has formed its own growth characteristics. There is a large bract under the petiole of Mimosa, called "leaf pillow", which contains a lot of water. Once it is stimulated, the water in the leaf pillow will flow up into the leaves, so that the leaves will close.

I didn’t expect that such a small grass could hide so many mysteries. We still need to observe more and discover more! Mimosa Explanation 3

There is a plant growing in the flower bed downstairs in our community. I won’t tell you what the name of this plant is, but I will tell you what it looks like and let you guess. Guess. Its flower is pink-purple, like a fluffy pom-pom. It is about 40 centimeters tall, has many branches, and is covered with barbed hairs and sharp thorns. The leaves are pinnately compound, and the pinnae are arranged palmately along the rachis. There are thorns on the edges and veins. If you touch it gently, it will The leaves will close and the whole leaf will droop downward in a shy shape, which will recover after a few minutes.

Have you guessed what this plant is based on this? Ha ha! If you don’t know, the name of this plant is Mimosa. It is said that this mimosa got its name from its shyness. But why is mimosa "shy"? With this question in mind, I conducted a survey.

After consulting the information, I learned that Mimosa pudica is a perennial herb or subshrub of the Leguminosae family. Also known as Mimosa, Huhecao, Choucao grass, etc. It has poor cold tolerance and is native to tropical areas of America. The flowers, leaves and pods of Mimosa have good ornamental effects and can be grown as potted flowers on balconies and indoors.

The reason why it is "shy" is because there is an enlarged organ called "leaf pillow" at the base of its petiole. There are many parenchyma cells in the leaf pillow, which are very sensitive to external stimuli. . Once the leaf is touched, the stimulation is immediately transmitted to the leaf pillow. This is when the cell fluid in the parenchyma cells begins to flow into the intercellular space, which reduces the expansion ability of the cells. The pressure between the cells in the lower part of the leaf pillow is reduced, resulting in leaf closure and petiole. The phenomenon of sagging.

After 1-2 minutes, the cell fluid gradually flows back to the leaf pillow, and the leaves return to their original appearance. Its "shyness" is actually a skill to protect itself. Whenever it encounters strong wind or heavy rain, it will shyly close its leaves.

Mimosa is a precious plant. We must not only understand it, but also protect it so that it can grow forever in the world. Mimosa Explanation 4

Today I will tell you about a kind of grass called Mimosa. Why is it called Mimosa? You will know everything after listening to the following article.

Mimosa gives people a very delicate feeling, the leaves are very thin, and the small leaves on the top are even thinner. The petiole of Mimosa pudica is divided into four "thin shafts", and both sides of the "thin shaft" are covered with small leaves, shaped like bird feathers. Its leaves are small and green, like tender grass buds that have just grown in spring, so cute! The flowers are pink round balls with a little golden powder on the lace, which is very beautiful. Its petiole is vermilion, with small thorns on it, like the stem of a rose. If you are not careful, you will be pricked. Touch its leaves lightly and it will shyly close them immediately.

So, why is Mimosa "shy"? It turns out that the origin of Mimosa is Brazil, South America. It is said that it rains every day there. If the mimosa cannot close its leaves in time when it rains, it will be injured by the heavy rain. Therefore, as soon as Mimosa touches a raindrop, it will immediately close its leaves so that it will not be injured by the heavy rain. This method of protecting itself has been passed down from generation to generation and has slowly become the unique way of self-defense of the Mimosa family. Distribution Children and grandchildren all over the world have inherited it.

If you touch a mimosa on a sunny day, although it will close the leaves, it will open them again after a while; if you touch a mimosa on a rainy day, it will take a longer time to close the leaves because it is shy. The grass needs to protect itself. Moreover, the faster you touch the mimosa, the faster it closes its leaves. The slower you touch the mimosa, the slower it closes its leaves.

Mimosa is really magical. My mother told me that mimosa is poisonous, so everyone should try not to touch mimosa. But mimosa is really fun, everyone should like it! Mimosa Explanation 5

In recent days, my father brought back a pot of mimosa. I have heard of Mimosa for a long time, because it has a special function, the leaves will shrink when stimulated. This special function made me very interested in it.

I first carefully observed the appearance of the mimosa to see how it is different from other plants. It has thin branches and green leaves that look very beautiful and full of life. After looking at the overall appearance, let’s look at the more specific appearance. The leaves are arranged in a palmate shape, generally 14 to 48 pieces, oblong, 0.5 to 1 cm long, with thorns on the edges and leaves, and many thorns also distributed on the branches.

I finally couldn't hold it anymore and touched the tender leaves with my hands. I saw that when I touched the leaves lightly with my hands, the leaves would slowly close up, and the leaves on both sides would be firmly "glued" to each other. Together, after 3 to 4 minutes, the leaves will slowly open again. After I tried it many times, I felt that the mimosa was "tired" and seemed reluctant to close again. This is really strange. , do you need to rest when the leaves shrink?

I was really puzzled, so I checked the information on the Internet: It turns out that Mimosa is produced in South America. Mimosa is also called induction grass. Mimosa blooms in summer, and its flowers are like a The small pompon is pink and delicate, which makes people feel pity for it and cannot bear to hurt it. In addition, Mimosa pudica also contains a small amount of toxins, and excessive exposure will cause hair loss. I also learned about a special function of Mimosa, which is that it can predict earthquakes. Before a major earthquake, Mimosa will have abnormal phenomena. Usually the leaves of Mimosa open in the morning and close at night; but before a major earthquake, the leaves close in the opposite direction. This statement has been verified through several tests.

Through reviewing the information, I finally understood the reason why Mimosa pudica can close: the cells of Mimosa pudica are supported by a small network of protein "kinesin". When a closed movement occurs, the phosphoric acid of the "dynamin" will fall off. As long as the mimosa absorbs the compound that prevents the phosphoric acid from falling off, it will not change after being touched. When the dynamin bundles spread out, the cells will be destroyed, resulting in moisture. Run out, resulting in closure. Femoral tactin is generally found in the muscle fibers of animals and is related to muscle contraction. Unexpectedly, it is also found in mimosa, which is very rare.

Through this observation, I learned a lot. In the future, I will develop the habit of observing diligently and thinking seriously. Mimosa Explanation 6

There are various flowers and plants planted in the garden next to my house. But my favorite grass is mimosa.

Just when I go to and from school every day or pass by here, I will say hello to it - touch it. Because I like to see the process of its still-open leaves merging.

One day, I came to observe the mimosa and found that it would close up when exposed to the sun, as if it was dead. I also discovered that as long as someone touches it or waters it, the mimosa will close, like a door. I was so happy to see this wonderful change.

Mimosa has a very strong vitality. Once, it was stepped on by my neighbor’s child, and its branches and leaves almost died. Later, after we took careful care of it, it grew back to its original size. . Tingting stood upright before my eyes. Mimosa Explanation 7

In my home, I have a dwarf mimosa. Its stem is slender and its leaves are feathery. As long as you touch it, its leaves will close and its head will droop. How interesting! Comment: The appearance and characteristics of Mimosa are introduced.

During weekend gatherings, friends all scrambled to play with it. This morning, I went to fiddle with it a few more times, and it was strange. Why didn't the leaves of the mimosa close up? Maybe it was because of the cold weather, but I immediately dismissed the idea. I remember a few days ago, I encountered a mimosa in another place, and its leaves closed quickly. What is going on? I'm puzzled. Comment: A new problem was discovered: Mimosa is no longer "shy".

I found a book about plants and looked at it, and then I understood the mystery. It turns out that the place where the small petiole and large petiole of Mimosa are connected to the stem axis is called the leaf pillow. The cells inside the pillow contain water. When we touch the leaves, the water in the cells in the upper part of the pillow flows to the gaps in other cells, and the upper part of the pillow wrinkles, so the Mimosa pudica becomes shy. But because we touch it frequently and continuously, the cell fluid in its pillow is drained. When it is not replenished, it will appear in a shameless state. Comment: I found the answer from the book. It turns out that mimosa is not "shy" and has profound scientific knowledge.

Don’t touch it for a few days (if you touch it again, it will become shy.) After a week, the mimosa can start to be shy again. Comment: Sure enough, after a while, it became "shy" again.

Mimosa also has a special function, which is to predict earthquakes. Mimosa leaves usually open during the day and close at night. If they open at night, it can tell people that an earthquake is about to occur. Comment: Mimosa can predict earthquakes.

Unexpectedly, an inconspicuous plant also contains a lot of scientific knowledge. (Hu Yuhan, Class 1, Grade 5, No. 2 Experimental Primary School, Tongyu County)

Comments

Through careful observation, the author discovered that mimosa is not "shy". What is the reason? ? The young author searched for information with questions and finally found scientific answers. The young author loves to learn and knows a lot. He also knows the little-known special function of mimosa - preventing earthquakes. This is just as the article says: "I didn't expect that an inconspicuous plant also contains a lot of scientific knowledge." Mimosa Explanatory Essay 8

Mimosa grows on sunny grassland. It is an annual plant.

The stem of Mimosa is long and thin, with fine hairs growing on the stem. The root is dark red, which becomes lighter as it goes up, until the top turns green. There are many sharp little thorns growing on the branches of the stems, as if to say: "Don't look at me as short, if you bully me, I will be rude!"

There are many sharp thorns growing on the stems of Mimosa pudica. It has a small petiole and two rachis protruding from the front end. Each rachis has two rows of oval leaves. A fat thing at the base is called a pillow. The newly grown leaves are light green with small downy hairs and look very delicate. The edges of the grown leaves are dark red, like a dark red lace on the leaves.

The pollen of mimosa is purple-pink, as cute as the pom-poms of dandelions.

Mimosa is popular because of its interesting leaves. Gently touch one or two leaves, and one or two leaves will close together, like a shy little girl slowly turning her head; touch the rain shaft heavily, and the leaves will close suddenly, like a tree. Butterfly with wings; touching the entire mimosa plant, the leaves first closed, and then the petioles drooped down, like a wronged child.

Why is Mimosa "shy"? It turns out that there are many thin-walled cells in its leaf pillow. These cells are very sensitive to stimulation. Once the leaf is touched, the stimulation is immediately transmitted to the leaf pillow, and the cell fluid in the cells begins to flow into the intercellular space, thereby reducing the cell expansion force. , at this time, the pressure in the lower part of the leaf pillow decreases, so the leaves close and the petioles droop.

I love this amazing mimosa. Mimosa explanatory text 9

There are countless plants in the world, and they come in all shapes and forms. And there is a kind of plant, if you accidentally touch it, it will immediately close up, like a shy little sister. This may sound weird to you.

Once, my brother and I went to Baishamen to play. When I was having fun, my brother suddenly shouted: "Sister, come and see, there is a row of grass that can bite people!" I thought he was joking, but I ran over anyway. You won’t know if you don’t look at it, but you will be shocked when you look at it. There really is such a thing! I once heard that there is a plant called Mimosa, which will close when touched. My brother and I were really eye-opening.

The color of Mimosa is mostly light to dark green, with two rows of small leaves and small thorns on the stems. As soon as the wind blew by, it was like a small green hand swaying from side to side.

But I don't understand why this little piece of grass has such great abilities, and why don't other plants have it?

So I looked up information online and found out that this is a phenomenon of self-protection. When you touch its leaves with your hands, the water in the leaf pillow will immediately flow to both sides. If the leaf pillow is deflated, the leaves will hang down. It not only drops its leaves when touched by hands, but also blows down when it encounters strong storms. There are also various mimosa species that close their leaves at night.

Mimosa’s home is in Brazil, where storms often hit the plants. But mimosas are rarely attacked. Because Mimosa can protect itself as long as it uses the "shy" method. On the other hand, in order to prevent animals from eating the leaves, this self-defense method is used to scare the animals so that the animals do not dare to approach, and they themselves are safe. After a long period of time, Mimosa pudica has developed this ability to adapt to the environment, protected itself very "smartly", and survived tenaciously.

An inconspicuous mimosa plant can have such great charm. It is truly a wonder in the world. In fact, many magical things exist in our lives. As long as we are good at discovering, observing carefully, and thinking diligently, we can discover the mysteries! Mimosa Explanation 10

Before moving, the neighbor’s grandmother was a person who liked to play with flowers and grass. On the balcony, various potted plants thrive under her careful care. There is also a peach tree planted in the yard in front of the door. When spring comes, the garden will naturally be filled with spring colors and the fragrance will spread far and wide. Therefore, I also wanted to take care of the flowers and plants.

But it turned out that this was just a whim. From animals to plants, as long as they are in my hands, there is basically no way to survive. I have a loose personality by nature and don’t like to be forced into a pattern by something, so I always forget to water and feed them. Even the cactus, which is known as the most tenacious of vitality, has completed its entire life in my hands.

Mimosa is a very common potted plant. My mother said it was not precious at all, so she gave it to me. A plant that folds its leaves is a magical thing for all children. So I went to "tease" it every day after school and it suddenly became a required course. I enjoy watching its leaves open and close, and naturally I will not forget to water it. As a result, Mimosa broke the highest record of my parenting life, and it successfully became my favorite thing.

One morning two months later, my mother excitedly told me: The mimosa was blooming! flower? This is the first time I know that mimosa can bloom. I ran up to the balcony and found a small plum-red ball on the top of the mimosa. Yes, it was a ball. It had no petals, just a ball made of many plum-red threads. It was petite and cute, like a shy girl. Since I was almost late, I decided to take a photo of it after school. But I didn't expect that its flowering period was so short. When I came back, the ball had withered and turned brown, leaving nothing but the surprise in the morning. I don’t know what happened, but after blooming, the mimosa seemed to have its energy drained, and it quickly withered and died.

From that day on, I truly realized the preciousness of life. This mimosa that I had raised for more than two months died without any warning. Looking back on the things I raised in the past, I feel that I was really cruel. That mimosa plant taught me to cherish life. I no longer dare to buy anything to keep, even though I can no longer watch it open and close its leaves every day.

Life is the most valuable but also the most fragile thing in the world, even a small stone can make them disappear. I want to express my gratitude and apology to that pot of mimosa. It was you who taught me to cherish it, and it was you who made me full of respect for life! Mimosa explanatory text 11

I heard that as long as I touch it, the leaves will close. I feel very strange about this. I think: its leaves are closed, pretending to be withered, maybe to protect themselves. Don't let other animals eat it... I decided to test it myself and confirm it.

On Saturday, I took a magnifying glass to the green belt in the community and carefully looked for mimosa. I finally found it. Next to a bunch of clovers, there was a mimosa. The leaves of Mimosa are green and composed of many small oval leaf strips, like pieces of green feathers. I touched the leaves gently, and sure enough I found that the leaves slowly closed and hung down. I put the magnifying glass on the closed leaves and found that the leaves were tightly closed, leaving no gaps. After a while, the leaves slowly opened and returned to their original shape. I touched it hard again, and its leaves quickly closed and drooped. After a few minutes, the leaves opened again and became energetic. I am very confused, why is this?

After I got home, I immediately looked up information online and finally solved the mystery: It turns out that at the joint of the Mimosa petiole, there is a bulging bag called a leaf pillow, which is full of water and is particularly sensitive. , if something touches the leaves, the leaves will hang down, and the mimosa will have no energy at all. It is also said on the Internet: Mimosa pudica, also known as shy grass and ugly grass, likes full sunlight, grows in moist soil, and is not cold-tolerant.

What an interesting look at the mimosa this time! It also made me understand: as long as you carefully observe and think about some things around you, interesting things are close at hand, and you can also discover the mysteries in life! Mimosa Explanation 12

"There is a little girl, wearing green clothes, who bows her head when touched, looking shy." Can you guess what this is? Yes, you guessed it! Just mimosa.

On Sunday, Teacher Mao introduced us to this kind of mimosa that looks very ordinary, but is actually very magical. The teacher told us that as long as we touch the leaves of Mimosa, it will quickly close up, like a shy little girl, afraid to see people, which is very interesting. Why is this? Through the teacher's explanation, I learned that there is a bulging little bag in the joint under the leaf, called the leaf pillow. It contains a lot of water and is also very sensitive. As long as we touch it, its water will flow to all sides. Without the support of water, the leaves will naturally close up. I forgot to tell you, once, I kept touching its leaves, but it was not "shy" anymore. It turned out that the new water in the leaf pillow had no time to replenish.

Its stem is reddish-brown, with many hairs and small thorns on it. If you accidentally touch it with your hand, it may be pricked and bleed. The leaves are green, and from a distance they look like banana fans or fish bones. Looking closer, it is composed of many neat small leaves, like ham sausages, waving to me: "Come and eat me!" The flower is pink, surrounded by a circle of small white dots, and is fluffy. , so cute.

The fruit of Mimosa is its seeds, which are like small mung beans. When they are mature, bury them in the soil, and a lot of Mimosa will grow in the second year.

What’s even more amazing is that at night, it sleeps like a human! This is because it continues to receive sunlight during the day, performs photosynthesis, and keeps growing. At night, it also needs to rest to conserve moisture.

This is such an interesting plant, I love mimosa. Mimosa Explanation 13

I remember when I was very young, my mother bought me a pot of mimosa at the flower and bird market. Because it is different from the previous flowers and plants, I am very curious about it, so I often pay attention to it and observe it.

In spring, Mimosa sprouts, and its little green head pokes out, but it is only about 10 to 20 centimeters; in April, Mimosa has stretched out its little arms, like a step-by-step ladder , neatly arranged on both sides of the pole; in May, the little arms of mimosa become thicker and larger, looking like a fan from a distance. Once when I was watering it, I accidentally touched the leaves of the mimosa with my hand. It shrank up like a shy little girl.

In summer, the leaves of Mimosa become darker and more lush. What's exciting is that the mimosa has bloomed. The flowers are pink, spherical, and light, like small thorn balls. At first glance, they look like purple enoki mushrooms. They are particularly cute!

In autumn, Mimosa pudica gives birth to babies. The shape of the small pods is very similar to that of yellow pods, except that the size is much smaller. There are hairy thorns on the edges of the small pods. The pods are green at first, but turn yellow when mature. When you pick them and open them, you will find a small but hard brown convex-shaped bean inside.

In winter, our mimosa became sick because it was no longer shy. In the evening, my father told me that Mimosa pudica has small petioles, large petioles and compound petioles. The place where the shame axis is connected is called petiole. There is water in the cells inside the petiole. When we touch the leaves, the water in the cells inside the petiole will flow into the gaps of other cells, and the upper part of the petiole will wrinkle, so the mimosa will become shy. However, if we touch it continuously, the cell fluid in its petiole will drain out, and if we touch it again before it has been replenished, there will be a shameful situation.

Do you know why mimosa is shy? I checked the computer and found out: It turns out that there is an enlarged organ called the pillow at the base of its petiole. There are many parenchyma cells in the pillow, and these cells are very sensitive to external stimuli. Once the leaf is touched, the stimulus is immediately transmitted to the leaf pillow. At this time, the cell fluid in the parenchyma cells begins to flow into the intercellular space, which reduces the expansion ability of the cells. The pressure between the cells in the lower part of the leaf pillow is reduced, resulting in leaf closure and petiole closure. The phenomenon of sagging. After 1-2 minutes, the cell fluid gradually flows back to the leaf pillow, and the leaves return to their original appearance. The reason why the above-mentioned phenomenon occurs in the leaves of Mimosa pudica is a physiological phenomenon and the result of Mimosa pudica's long-term adaptation to the external environment during the phylogeny process. Because mimosa is native to tropical areas, where there are violent storms. When the storm blows the leaflets, it immediately closes the leaves to protect them from the damage of the storm, thus gradually forming this physiological phenomenon. Mimosa explanatory text 14

Although Mimosa is neither expensive nor blooming, it has won the love of many people. This is probably because of its shy leaves! But does everyone know its origin?

A long time ago, there was a kind of flower that bloomed all over the hills and fields. Every place with it became very beautiful. This beautiful flower has heart-shaped pink petals, yellow stamens and slender green leaves. It is so popular that everyone calls it the "shy flower".

Because of their beauty, they become very proud and do not allow others to touch them for fear of dirtying themselves. The butterfly came to rest in the mimosa flower, but was driven away. The bee flew over "buzzing" to collect nectar. The mimosa flower quickly retracted its leaves and raised its head high: "Really, you want to collect my pollen." , you are not qualified!" After hearing this, Bee had no choice but to leave angrily. Gradually, no one wants to deal with the shy flowers, but they are unaware of it and are still so proud.

In this way, time passed quickly, because all the insects were unwilling to help the mimosa flowers spread pollen, the mimosa flowers that once dominated the fields began to decrease, and those roses and roses began to appear one after another. .

Autumn is coming soon, and there is only one mimosa flower left in the field that is about to wither. At this moment, it regrets very much, regretting everything it has done, but there is no way to make up for it, because it is about to wither.

"Why did I do that in the first place? Am I really that beautiful and precious?"

"No!" There was only a negative answer in its heart. The shy flower felt extremely guilty, feeling sorry for the insects that had helped it... As she thought about it, a line of hot tears flowed down its cheeks and fell into the soil at its feet. Suddenly the last tear turned into a crystal clear seed just as it was about to enter the soil. In an instant, many mimosa flowers grew on the fertile land, but from then on, it was difficult for them to bloom. So, people changed its name to "Mimosa".

Now, the leaves of Mimosa still instinctively retract at the slightest touch, but this time it is not proud, but truly shy. Mimosa Explanation 15

One day, I went to a classmate’s house as a guest, and I heard that his house had a pot of mimosa, which was very magical.

When I arrived at his house, I saw a pot of mimosa on the balcony. My curiosity kept pouring out, and I quickly stepped forward to take a look. Mimosa grows relatively short, only six or seven inches tall. The stem is less than half as thick as a chopstick, and seven or eight small branches grow on the stem. There are pairs of leaves on the branches, and there are fine hairs on the leaves.

Seeing this scene, my hands are a little itchy! I walked forward and touched the leaf gently with my hand. It shrank back embarrassingly like a little girl, and the petiole drooped. After a while, it will unfold its leaves again, and the petiole will raise its head proudly. I think this is the reason why it is called Mimosa! I touched the Mimosa leaf repeatedly like this. After I touched it, it stopped moving. I thought it was dead and felt very anxious. My friend saw what I was thinking and said to me with a smile: "It's not that weak, and it can't die so easily. It will come back to life later." After a while, it really became energetic again. What is this? The reason? I quickly asked my classmate: "Why does it shrink up when someone touches it? Then it stretches out again? Why doesn't it move when I touch it repeatedly?" The classmate shook his head and said he didn't know much.

In order to solve the puzzle, I quickly ran home, checked the information, typed the question on the computer, and quickly found the answer. It turned out that this is called "biological expansion phenomenon." The cells of Mimosa contain a lot of water. When we touch the leaves of Mimosa, the pillow cells are stimulated, the cells immediately lose water, and the pillow becomes limp, like a ball that has lost its air. The leaves lost the support of the leaf pillow and closed up one after another. After a while, they were supported and stretched out. If we continue to tease and stimulate its leaves one after another, it will feel "bored" and no longer react. This is because continuous stimulation causes the cell fluid in the occipital cells to be lost and cannot be replenished in time.

There is knowledge everywhere in life. It requires you to be good at observation, and you will not be far away from learning its secrets.