August 12, the third day of the official schedule.

There will be a total of two lab exams.

8:30-11:30 a.m. Lab Exam I.

14:00-17:00 p.m. Lab Exam II.

Almost all students are nervous, because of the education system, the lab questions are often much more difficult for high school students than the theory exams.

Su Mu took a deep breath and solemnly walked into the examination room.

Lab exams are also his weakest point.

Now I can only resign myself to fate, and I just hope that the lab exam is not too difficult.

Basically, the test results will be counted on the fourth and fifth days.

If he can't get any awards by then, he will return to Qianbei in a gloomy way, and I'm too sorry for the encouragement Yan Xiaoke gave him yesterday.

However.

At the first glance of the experimental requirements, a trace of cold sweat appeared on Su Mu's forehead.

Experimental material: 2 beetles (soaked material, 1 size each)

1 experimental instrument microscope; 1 dissecting scope; 1 magnifying glass; a set of dissecting instruments; a wax disc; eyepiece micrometer (installed); Mirror table micrometer (shared by four people, passed every 20 minutes, a total of two rounds; a 40W table lamp; Pipette; Beaker; absorbent paper;

One

1. Write down the type of antennae of the animal

2. Draw a map of the antennae structure of the animal and mark the name of each part.

3. Write out the animal's

Two

1. Calculate the area of the single eye (small eye surface) of the animal, and briefly write down the calculation principle, method, experimental data and conclusions.

2，

Three

4. Dissect the animal, make the animal's trachea, mount the Malcolski tube, and point out the animal's abdominal nerve node with a pin, and ask the main invigilator to judge the score (each candidate will only judge once, and the score will be stopped five minutes before the end of the test)

Five

The total duration of the exam is 3 hours

The total score is 85 points

Su Mu had thought about many situations, but when he saw the worst situation.

Still frowning unconsciously.

At the beginning, in the small dilapidated laboratory of Qianbei Middle School, he almost did not have the conditions for dissection, except for touching the dissecting instrument once or twice, Su Mu did not even really complete an anatomy experiment.

Probably because of his physiological disgust, he mainly focused on plants in his review of experimental questions.

Some of the animal's antennae types and structures are recognizable at a glance.

But the next few big questions are asking for it, and it is embarrassing for him.

The invigilators walked around and observed, and the occasional sound of instruments colliding could be heard throughout the laboratory.

Many other students were also struggling.

I don't know where to start.

In fact, the anatomy experiment questions are really relatively simple, and the most important thing is to overcome their own psychological problems.

Su Mu sighed.

Since the topic is already here, he can only accept it.

After hesitating for a while, he did not take the lead in dissecting, but carefully thought about the few questions and answers.

Scarab is a common name for Coleoptera, and there are many species.

Now on the test bench, is the more common large blackgill beetle adult, phototaxis, active at the end of May, to 10~20 places from the surface to feed on plant roots, to the end of June pupation, in mid-July adult appeared.

The antennae type is gill flake-like, and although Su Mu has not seen the structure diagram, he can roughly guess a lot.

According to the expression of the biological question, the structure of the antennae is basically just a few things, and the gill flakes are easier to draw, even without dissection, Su Mu is confident to complete the drawing.

In the next few questions, Su Mu read it seriously.

After overcoming the psychology at the beginning.

He found that the difficulty was not as difficult as he had imagined.

In addition to anatomy, other questions, such as analyzing experimental errors, can be answered with theoretical knowledge.

Only those few anatomy operation problems need to be scored in front of the invigilators, and for Su Mu, this is the real difficulty of the experimental exam.

Outside the examination room, in the coach and team leader lounge.

The students are conducting experimental exams, and the mentality of the coach and team leader is actually quite nervous.

After all, they are the top students from all over the country.

Almost all of them are the seeds of the future of biology in Huaxia.

Even, in the near future, 50 members of the national training team and 6 IBO players will be born to represent China to participate in the International Biology Olympiad.

"Coach Liu, what do you think of the situation this time?"

Because after the exchange meeting on the second day, the responsibilities of the team leaders and coaches have been almost completed, so Xiong Xuewen has begun to worry about the final results.

Liu Kaian sighed silently.

"Our Biology Olympiad is still too poor, and the main energy of the province is focused on Olympiad mathematics and Olympiad."

"Chu Mingzhe and Jiang Yuhang, I'm not too worried, Guo Qingya's level is also very stable."

"But those three students who are not in the provincial capital are not easy to say."

"Especially that Su Mu, it's really a pity, his theoretical foundation is very strong, and the only thing I'm worried about now is his experiment."

"Yesterday, when we talked about experimental questions, he was obviously not familiar with many operations and skills, if the test of plants is good, the test of anatomy is estimated that he will be more suspenseful this time."

Xiong Xuewen paused, "It shouldn't be so coincidental to get the anatomy, I took the anatomy exam last year, and I don't feel like it will come out again this year." ”

"Actually, we should have applied to take over all the students of the provincial team for training, and the group of professors in the provincial biology group should allocate some funds to the Olympiad every year."

"I applied, but people said that our grades in previous years were too bad"

"We can't always ask students to train at their own expense, hotels, restaurants, and test sites are also more troublesome, and we can train students in Qiantang City to the limit."

Liu Kaiwen smiled bitterly.

Because although many things are not explicitly stated, the main core members of the provincial team are still a few players from Qiantang City.

If Su Mu is from Qiantang Middle School or Qiantang No. 3 Middle School.

I'm afraid that this time there will be one more general in the Biological Olympiad in East Zhejiang Province.

Judging from the discussions in the past two days, Liu Kai'an knew that Su Mu's knowledge and ability were very wide.

However, in the Biology Olympiad, the experimental score also accounts for a large proportion.

If he remembered correctly, Qianbei Middle School, where Su Mu was located, didn't even have a complete biological laboratory.

The learning environment and testing conditions in provincial capitals are much higher than those in non-provincial capitals.

Judging from the results of the past years, because of the relationship between the experimental scores.

In eastern Zhejiang Province, the results of players in provincial capital cities are basically crushing the results of players in non-provincial capital cities.

Therefore, Liu Kaiwen really thinks that Su Mu is a pity.

In previous years, there have been many top creatures like him.

But most of them still failed in the experimental score.

。