Lan Jie walked freely through the sheep competition team, the number of competition teams, and the chemical competition team, and he wore it to the life competition team.

Lei Tiangang, the head coach of the Shengjing team, originally refused to accept Lan Jie, but when he refused, he accepted it.

"Rangier, the seat closest to the window in the last row of the classroom is yours. You can come or not come to the competition theory class. But when the coach is in class, you are not allowed to break in or leave suddenly. Can it be done?" Lei Tiangang has just retreated to this extent, which can be said to be very tolerant, and can even be said to be compromised.

Lan Jie swore a promise: "Yes, I can! Thank you, Mr. Lei!"

Lei Tiangang said: "In terms of competition theory, I will give you all the information, you can take theory classes as much as possible, and if you lack theory classes, you can learn the materials by yourself, and ask the coach if you don't understand." In terms of experiments, I hope you don't miss any of the lab practice classes. ”

Mr. Lei's plan is exactly what Lan Jie wants, and Lan Jie is full of fighting spirit and says, "Received!"

This morning, there happened to be Lei Tiangang's theoretical class, and Lan Jie came to the Shengjing classroom, sat in his designated seat, and listened carefully to Mr. Lei's theoretical class.

Ethology is a compulsory part of the national decision and IBO exam, and Lei Tiangang's class is dedicated to animal behavior: "Most new bees are worker bees, and bee colonies will also breed a small number of drones. Ask the students to think about the question, who is controlling the sex of the new bees?

A classmate replied without thinking: "It's the queen bee!"

Lei Tiangang asked, "Oh? Why?"

The student said quite confidently: "The queen bee will store enough sperm for its lifetime when she is married, and the queen bee can control fertilization as she likes, and the queen bee will control which eggs she wants to fertilize, so it will manipulate the sperm stored in the body to fertilize these eggs, so as to breed female bees and male bees." Some larvae feed on royal jelly after hatching, and they become fertile when they reach adulthood and become new queens. Why the larvae that have been eating royal jelly develop into queen bees instead of worker bees, then I don't know, it's quite mysterious. ”

Lei Tiangang nodded and said, "Yu Junjie, your knowledge is very complete, and you also have a certain depth, and you have your own thinking in it. Do you have any other opinions?"

"Yes!" Rangier raised his hand impatiently.

Lei Tiangang looked at the corner of the back row: "Lan Jie, talk about your point of view." ”

Driven by a passion for nature, Ranger began researching the academic literature 100,000 Whys at the age of three.

Mysterious creatures, or the mysterious behavior of common creatures, Lan Jie is very interested and has done some academic research, he said: "The queen bee uses a simple method to control the sex of the eggs, this explanation is relatively simple, but the truth is not so simple. ”

"Huh?" Yu Junjie smiled slightly, he wanted to hear what Lan Jie had to say.

"I watched a documentary, and there was a passage in the film that stuck in my mind about a couple of worker bees eating the newly hatched drones, and the queen was shivering. This shows that the boss of the bee colony is not the queen bee, but the worker bee. Lan Jie made a gesture of wiping his neck, which was a bit arrogant, but it was in line with the topic.

Yu Junjie's body shook: "So cruel?"

"Then I went on to study documentaries, and then the worker bees kept eating and eating, and they not only ate the drone larvae, but they also ate up the eggs. ”

“！”

"The drone's nest is larger than the average nest, and the queen lays eggs in this large hive to breed the drone. Worker bees are not capable of reproduction, and egg laying can only be done by the queen, but it is up to the worker bees to decide where to lay eggs, what kind of eggs to lay, and how many eggs to lay. If the queen bee behaves in violation of the rules, the worker bees will eat the eggs or larvae. Lan Jie said and couldn't help but walk to the blackboard, and he asked Lei Tiangang: "Mr. Lei, can I draw a picture to illustrate?"

Lei Tiangang handed Lan Jie a piece of chalk: "Let's draw." ”

Ranger took the chalk and drew a number of regular hexagons on the blackboard. He was so active in Mr. Lei's theory class, not to please Mr. Lei, but to be interested in animal behavior from the bottom of his heart.

After drawing the picture, Ranger continued: "The royal family is very special, its mouth hangs down at the bottom of the hive. There are usually more than a dozen royal families, and when spring flowers are in full bloom and food is abundant, the queen bee will lay eggs in these dozen royal families, and the larvae hatched from the royal family are fed royal jelly throughout the developmental stage, and the larvae that feed on royal jelly from beginning to end develop into queen bees. In the same way, it is the queen bee that lays the eggs, but it is the worker bees who feed the royal jelly, and it is the worker bees who decide who to develop into the new queen. In other words, the worker bees are behind the colony, and the queen bee is nothing more than an egg-laying tool at the mercy. Hehe, is it really so happy to be the king and the queen?"

Yu Junjie inexplicably entered Lan Jie's rhythm, and he said with feeling: "No, being the king and queen is not happy, and it can even be said to be sad." ”

Yu Junjie raised a question, why do the larvae that feed on royal jelly develop into queen bees from beginning to end? Is it just because royal jelly is nutritious and conducive to the development of the reproductive system? In fact, I am also thinking about this question, and the documentary I watched only states the real phenomenon, but does not give an explanation of the principle. I later checked the information and found that there are many problems about bees that have not yet been clearly explained by the scientific community. Bees are common creatures, but many of the behaviors of this creature are fascinating!Oh, I'm far away, Mr. Lei, didn't delay your lesson?" Lan Jie made an apologetic gesture and returned to his seat.

"It's a good thing that students are able to think outside the box, think deeply and have lively discussions, and I'm happy to see that. Different from the preliminary round of the student competition, the national competition is very Olympic, and the students must reserve sufficient knowledge, but it is not a simple rote memorization. The national finals test the students' knowledge and ability to use them flexibly, and it is no problem for you to give full play to your imagination in the national finals, and it can even be said that it is necessary. ”

"Bees are both representative and unique social insects, and there is indeed no clear statement in the scientific community about some mysterious behaviors of bees, but this does not prevent us from bold and reasonable imagination. This type of question is often an open-ended type of question, there is no standard answer, and you can get a high score if you deduce and explain on the basis of known scientific principles to form a logical self-consistency within the question. Now, I'm trying to use the known theories of animal behavior and genetics to explain the mysterious behavior of bees......"

Lei Tiangang closely followed the syllabus of the competition and carried out appropriate expansion with reasonable evidence.

Biology is a discipline that studies and unlocks the mysteries of nature and human beings themselves, and many biological phenomena have always existed, but they are difficult to fully explain by human scientists.

If you can't solve the problem with conventional operations, you have to be creative. Lan Jie spent the morning being creative, listening to all the competition theory classes in the morning and interacting with his coaches and teammates.

Plus one!

Plus one!

Plus one!

Why don't I add one to my creative mind!

If you don't add it, don't add it, and go to eat.

Lan Jie left the competition classroom, and when he went downstairs, he met a person: "Yo, Zhang Yutong, long time no see." ”

"Lan Jie, you are a busy man, it is not easy to meet you. ”

"I'm busy, you're busy, everyone is in the third year of high school, and no one is not busy. Save time, take a walk in the canteen?"

"Let's go. ”

Lan Jie and Zhang Yutong came to the Yangzhong canteen together, cooked and sat down.

"Under normal circumstances, the people who have been escorted to Mizuki University should not be so busy, but Lan Jie, you are not a normal person, so I want to know, what are you busy with?" Zhang Yutong asked.

Lan Jie said of course: "What else can you be busy with, we science students, of course, are busy with mathematics, physics and chemistry." What about you, what are you busy with, and where are you going to submit your application?"

"It's hard to say now, it depends on the IELTS score and the college entrance examination score. ”

"Isn't your international class just a college entrance examination class plus an IELTS?"

"yes, that's right. We are the same as the college entrance examination class, from 7 o'clock in the morning to 10 o'clock in the evening. ”

"It's pretty much the same thing I do in the competition class. ”

The two former classmates and members of the class cadres were chatting, highlighting a busy word.

Zhang Yutong suddenly took out two tickets, Sports Center, Evergrande VS Perth Glory.

"Tonight at half past seven, the semi-finals of the AFC Champions League. Zhang Yutong looked embarrassed that he wanted to go but couldn't.

Lan Jie asked: "You know that our senior high school students are busy with their studies and can't watch the ball game, what else do you want to buy?"

Zhang Yutong explained: "Someone else sent it. ”

"You know that even if it's someone else's ticket, you can't go, so why do you want to accept it?"

As soon as my hand slipped, I took it. That's the situation, Lan Jie, how do you deal with it?"

"Evergrande lost 0-3 away to Perth Glory, and it would be embarrassing if Perth Glory scored at Evergrande's home stadium. The current Evergrande is not the Evergrande of the past, and if we watch one less game, we will most likely not see Evergrande's finals. ”

"Lan Jie, you said so much, what is the specific plan?"

"If you go to the sports center, you have to skip class. Skipping class is a source of panic. ”