Dead-leaf butterflies that change color and avoid enemies
In the insect kingdom, there are many stealth masters like stick insects. They not only simulate the surrounding environment in appearance, but also keep the body color consistent with the environment as much as possible, so it is difficult to distinguish natural enemies from true enemies. The butterfly is one of the masters who can change color and avoid the enemy.
Dead-leaf butterfly is also called wood-leaf butterfly. Listening to its name, people can easily think of the dead branches and leaves of trees. Indeed, the dead-leaf butterfly is very inconspicuous in the butterfly family, but its stealth stunt is impressive. It can change color and shape in different environments, hide itself, deceive natural enemies with vivid camouflage and protect its own safety.
How does a dead leaf butterfly show its invisibility? It turns out that its front wing is shaped like the tip of a leaf, and its rear wing is like the petiole of a leaf. The front and rear wings are stacked together and look like a leaf. What's even more amazing is that on this "leaf", there are dark brown lines very similar to veins and diseased spots similar to withered and yellow leaves. Put it with the leaves, it can almost be confused. When the butterfly was chased by natural enemies, it quickly landed on the branches of broad-leaved trees, clung to the branches with its body and stood with its wings together. At this time, it is like a yellow leaf, mixed with other leaves, making it difficult for natural enemies to distinguish which one is a bug and which one is a leaf, and it loses its hunting target.
When the dead-leaf butterfly drinks water by the pool or forages on tree trunks and flowers, it will also be invisible for its own safety. It puts its wings flat on its back and covers its body with wings. At this time, its body color will be consistent with the surrounding environment, and it looks like a piece of moss or fungus. This can not only deceive the sight of natural enemies, but also ensure their own safety.
2. How to tell children basic physiological knowledge cartoons?
Follow-up: What kind of "materials" should I prepare for my children? Is it easy to start? Children between the ages of eight and ten must not be perfect! Back to the beginning, the materials are simple, including crayons, pencils, colored pencils and watercolor pens. If you are eight to ten years old, you should be able to receive more systematic painting training.
The most important thing is interest. Follow-up: Can you elaborate on what you started painting? After studying for a short time, what did you draw? How can we improve their interest? Back to them? Are there many children? Copy some patterns with relatively simple lines at first, and then gradually improve them. When they can copy properly, you can buy some books that teach comic drawing skills and let them learn the most basic comic character structure.
As for the improvement of interest, as I said above, the most important thing is to make children love comics and watch comics, so that they have greater interest in learning to draw comics, but this is also different from person to person, and you need to figure out the children yourself.
3. Little common sense of biology, urgent
1. The strongest muscle in the human body is the tongue.
It is impossible to sneeze with your eyes open.
It is impossible to hold your breath and commit suicide.
Every time you lick the stamp gum, it is equivalent to absorbing110 heat.
Right-handed people live nine years longer than left-handed people on average.
Crocodiles cannot stick out their tongues.
7. Polar bears are left-handed.
8. An ostrich's eyes are bigger than its head; Starfish haven't evolved their heads yet.
9. A flea can jump 350 times its own length, which is equivalent to a person jumping over an American football field.
10. A cockroach with its head cut off can live for 9 days, and the cause of death after 9 days is starvation.
1 1. Giraffes don't cough.
12. Owls are the only birds that can distinguish blue.
13. The whale's heartbeat is only 9 times per minute.
14. On average, an adult is 0.4 inch taller in the morning than at night. Because the cartilage tissue of the spine is easily compressed during the day.
15. We have been drinking water for 300 million years.
16. Chocolate contains a chemical called phenyl. This is something that can be made in your mind when you are in love.
17. Only 30% people will enlarge and narrow their nostrils.
18. Among all languages, English contains the largest number of words, close to one million. German vocabulary is less than180,000 words, and French is even worse, less than 10,000 words.
19. The sex of an adult eel will change from male to female, and it will change several times in its life.
20. The draft blueprint for the Eiffel Tower covers an area of over 65,438+04,000 square feet.
2 1. According to a law passed in Britain in 1845, suicide is a very serious crime, and the heaviest sentence can be hanged.
22. Astronauts can't cry in space, because tears can't flow without gravity.
23. The tongue of a chameleon is twice as long as its own body.
24. The people who use toothpicks most often are Americans.
25. Blind chameleons still have the ability to change colors to adapt to their surroundings.
26.27% of American male college students think that life is a meaningless hell on earth.
27. A normal person's eye muscles need to exercise 10000- 15000 times a day on average.
28. The elephant will still stand after death.
29. Some insects can live without their heads 1 year.
30. It took Leonardo da Vinci 12 years to draw the lips of the Mona Lisa.
3 1. When glass is broken, the maximum speed of glass fragments can reach 3000 miles per hour.
32. Cows can supply more milk when listening to music.
Roses picked in the afternoon last longer than those picked in the morning.
34. The tiger shark's embryo has to go through a fierce struggle in the mother's womb, and finally the baby tiger shark can be born alive.
35. A 70-pound octopus can pass through a hole the size of a silver coin because they have no spine.
Beethoven used to wash his face with ice water when he was sitting and writing songs. He believes that this will help his brain to make better things.
37. The stick insects in Indonesia are the largest insects in the world, some of which are 65,438+0 feet long.
38. Men's bodies contain more blood than women's bodies. Usually, men's blood can be as high as 1.5 gallon, while women's body is only 0.875 gallon.
39. The inventor of parachute gave his first parachute jump to a dog.
40. The wing length of a Boeing 747 is exactly the distance of the Wright brothers' first flight.
4 1. A big Japanese crab may be as long as 12 feet.
42. Sharks can only detect one millionth of blood in water.
43. The original meaning of "samba" in "samba dance" is "grinding navel together".
Children grow faster in spring.
45. Do you know how much water from the Amazon River flows into the Atlantic Ocean? In the Atlantic Ocean within 0/00 mile from the estuary/kloc-,the water you drink is still fresh water.
46. Newborn turkeys need parents to teach them how to eat, or they will starve to death.
47. The moon weighs 810 billion pounds.
Bats are the only mammals that can fly.
49. A caterpillar has more than 2000 muscles.
50. Hippos run faster than people. References:
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4. Collect the diary of the intellectual cartoon rice ear worm, which has just been discovered recently, although it is mixed with some bad things.
There are many young cartoons about this kind of thing. Baker talks about rock music, and there is an animated version. If you are interested in rock music, you might as well watch Black Jack by Osamu Tezuka, the god of comics. As a medical student, Osamu Tezuka should make a series of sequels, such as Koko Island Farming, which is a macroscopic and constitutional history with high realism. This is a masterpiece of workplace comics, which can be said to be a workplace textbook PS: Macro and Constitutional History's wife is Chai Menwen. Love Story in Tokyo is Kazuhiko Shimamoto's War of Comics. From the name, we can see that this is a story about a cartoonist, and we can understand the creation process of the cartoon Bakuman. Do you need to introduce this? It was painted by Takeshi Obata ~ The story tells the story of Jiyingshe. Xing Cuncheng's "PLA-ES" is a hard science fiction with an animated version. It tells the story of a space cleaner, Masayoshi Masuda's "Fireman's Great Martial Arts". For example, the Little Fisherman's Sanping, which has a long history and has been serialized since the 1970s, was widely claimed by Kaohsiung for its fire protection knowledge.
Tell all kinds of interesting things about fishing and introduce many fishing tips. PS: As Japan is an island country, there are many cartoons related to fishing in Motoka Murakami, such as JIN- Ren-, which combines historical and medical images, and you can learn a lot about surgery and medicine. If you are interested in this, recommend another work of the author, Dragon-Ron, to learn some knowledge about film making.
As for the author's view of history, if he doesn't agree with it, he can completely ignore the mild temperature of bean sprouts. This is recommended for animation and microbiology, bartender. This book also recommends animation, so that you can watch Black Beauty-When Animation is Made, Akitaro Daichi's animation, and see how animation is made. Very interesting, you can also learn a blog about animation. If you are really interested in this kind of thing, recommend one.
5. Biological knowledge handwritten newspaper materials
I also want to make a handwritten newspaper. I saw it when I copied the information.
Lend you my information: the method of learning biology is the key to success or failure in learning. To achieve the ideal learning effect, we must master scientific and efficient learning methods. Learning methods closely related to learning biology include observation, taking notes, thinking and memory.
1. The learning process of observation is essentially a cognitive process. The cognitive process begins with perceptual knowledge, which is mainly obtained through observation, so observation is the primary learning method.
Observation methods mainly include sequential observation, comparative observation, dynamic observation and observation while thinking. (1) sequential observation sequential observation has two meanings.
Generally speaking, the observation method is to use the naked eye first, then the magnifying glass, and finally the microscope. Microscopic observation is also low power first, then high power.
For example, observing the root tip of a plant means observing the young root with naked eyes, distinguishing the four parts of the root tip according to color and transparency, then observing the root hair of the root tip with a magnifying glass, and finally observing the longitudinal section of the root tip with a microscope to understand the cell characteristics of each area of the root tip. Generally speaking, from the observation direction, the whole is first followed by the part, from outside to inside, from left to right and so on.
For example, to observe a flower, we should first observe the shape and color of the flower as a whole, and then observe the flower, corolla, stamen and pistil in turn from outside to inside. (2) Comparative observation Comparative observation is conducive to quickly grasping the * * * and personality of things, so as to grasp the essence of things.
For example, to observe the structure of mitochondria and chloroplasts, we must first seek common ground while reserving differences: they all have double-layer membranes, which contain granules, matrix, enzymes, a small amount of DNA and RNA. Then seek differences from the same: the mitochondrial inner membrane folds into a cell, while the chloroplast inner membrane does not fold inward; Mitochondria have enzymes related to respiration, which are distributed in intima, granules and matrix. However, there are enzymes related to photosynthesis in chloroplasts, which are distributed in grana layer and matrix. Chlorophyll exists in chloroplasts, but not in mitochondria.
(3) Dynamic observation The observation of living habits, growth process and reproductive development of organisms belongs to dynamic observation. The key to dynamic observation is to grasp the development and change of the observed object.
For example, observing the growth of roots, in the process of continuous culture after drawing equidistant ink lines on young roots, the key point is to observe the change of the distance between each ink line, so as to draw the conclusion that roots grow by the apex. (4) Thinking while observing is the basis of thinking, and thinking can promote the in-depth observation, and the two are inseparable.
Therefore, we should observe with questions, while thinking and observing. 2. The method of taking notes Mr. Lu Xun said: "In any case, as long as you continue to collect information and accumulate it for ten years, you can always become a scholar."
Summarizing the experience of many scholars at home and abroad, it can be said that taking notes is a way to become a talent. There are many ways to take notes. In biology learning, there are mainly three kinds: reading notes, listening notes and observation notes.
(1) Reading Notes If you want to store, extract and use what you have learned for a long time, you should take reading notes at any time when you are reading. There are mainly the following kinds of reading notes.
(1) Copying notes is divided into full copying and excerpting. When making such notes, you should pay attention to proofreading after copying to avoid mistakes, and then indicate the source for future reference. (2) Card comments, the content of the card is not limited, and varies from person to person, but generally it should have information category, number, source, author's name, text and other contents.
It should be noted that each card should write a content, which should be classified and filed in time or bound into a book. 3 comment notes, that is, in the margin of the page, write down your personal views and experiences on the original text.
(4) Symbol notes, that is, symbols are marked between the original texts to deepen the understanding of the original texts. Common symbols are black dot, circle, straight line, curve, double line, dotted line, arrow, box, triangle, exclamation mark, question mark and so on.
Two points should be paid attention to when taking notes on symbols: First, the meaning of symbols must be clear and consistent; Second, symbols should not be too dense, otherwise it is difficult to highlight the key points. (5) Summarize notes, that is, summarize and write the key contents of a book or an article in your own language.
(2) Lecture notes are notes of listening to reports, lectures and lectures. The prominent contradiction in taking such notes is that the speed of taking notes can't keep up with the speed of speaking. Therefore, it is necessary to do "three notes and three no notes", that is, the key issues and difficulties are not recorded in the book; Small problems, understandable points, some of which are not remembered in the book. (3) Observation notes are records made when observing biological forms and life phenomena in and out of biology classes.
When making such notes, we should pay attention to details, contrast, process changes and grasp the characteristics. 3. Thinking method Thinking ability is the core of various abilities, and thinking method is the key to thinking ability, so thinking method occupies a core position in learning methods.
The common thinking methods in biology learning include analysis and synthesis, comparison and classification, systematization and concretization, abstraction and generalization. (1) The method of analysis and synthesis is the way of thinking that a whole knowledge is decomposed into various parts for investigation, and synthesis is the way of thinking that all parts of knowledge are combined into a whole for investigation. Analysis and synthesis are important methods often used in biology learning, and they are closely related and inseparable.
If the analysis is not comprehensive, you will only see the trees but not the forest; If we only make a comprehensive analysis, we will see the trees but not the forest. In practical application, we can analyze first and then synthesize, analyze first and then analyze, and synthesize while analyzing.
(2) Comparative classification is to compare related knowledge to determine their similarities and differences. Comparison generally follows two ways: one is to find out the similarities between knowledge, that is, to seek common ground in differences; The second is to find out the differences on the basis of finding out the similarities of things, that is, to seek differences from the same.
Classification is a way of thinking that classifies knowledge according to certain standards. There are two kinds of classification methods commonly used in biology learning: one is scientific classification method, that is, from a scientific point of view, according to the essential characteristics of biology; The second is practical classification, that is, from a practical point of view, according to the non-essential attributes of organisms to classify.
Comparison and classification are prerequisites. On the one hand, only by comparing and understanding the similarities and differences of organisms can we classify them. On the other hand, only by classifying organisms can we compare them. Therefore, we should organically combine the two in the process of biology learning.
(3) systematization.