I m a sophomore in high school, and I ve got a lot of creatures experienced ones come in .

Nothing worked. Hehe. You just have to be able to listen to it.

There's nothing difficult about living things.

If you're interested, you'll be fine.

Creatures are the hardest. It is the relationship between the activities of life. Actually, it's nothing to figure it out.

Pay attention and chemistry and have a lot to do with life. That's it. For example, one.

There is an experimental identification of reducing sugars. In fact, it is the reaction of newly produced copper hydroxide with -cho -co-. Take your time.

It's simple.

I'm a student of biology.,But now I've graduated.,I'll talk to you about biology without using your brain, just spend effort.,Just listen to it in the second year of high school, and you don't have to spend any effort after class (but I haven't heard it since my sophomore year of high school!) In the end, biology is still a test.,This is not a learning method for smart children.,This is the characteristic of this course.,No one with normal intelligence can use this method) At the end of the second year of high school, turn over the whole book to roughly understand what it says.,Before the total review of the third year of high school, I also read all the books twice.,Roughly understand, otherwise you don't know where the corresponding knowledge points are when you see the relevant topics, it's very funny!! The general review teacher in the third year of high school will list all the knowledge points in the book into a book and send it to you to memorize, you spend some effort to memorize it, and if you encounter something too abstract and difficult to remember, you will go to the book to read the illustrations of the book and remember it for a while.

Biology is used as an auxiliary science, and physics and mathematics are annoying, so I take out biology Beibei (the total review of the third year of high school guarantees that I will memorize it every day) like a liberal arts! Sophomore in high school! It's not a big deal to play, and if you don't worry, you can also listen carefully to the focus on the total review in the third year of high school.

ps: There are a few chapters of biology that need to be very brainy, you must study and listen carefully, otherwise you will have a hard time afterwards Genes and heredity.

That's the right question.

Find someone with the best biology to help you make up for it in advance, and the teacher and the student will be successful.

I just asked my cousin who had a master's degree in biology to take it early in the summer, and I talked about it very generally, one chapter in one class, and only three classes, but after the beginning of the second year of high school, biology has always been the first.

The main thing is to have a general understanding of the course and its knowledge structure (in fact, it is networked and strongly interconnected).

Finally, I wish you the best of luck!

Isn't the second year of high school divided into arts and sciences, I don't know if you are a liberal arts or a science major. It's not necessary to be a liberal arts subject, and the science subject is quite simple. Don't worry too much.

Biology is not difficult, just follow the class!

It is the relationship between structure and function. What kind of structure has what kind of function, understanding plus memory, you can watch some science programs in the summer vacation (foreign good) I wish you good learning.

The temperature is too high,When the structure of an enzyme molecule is destroyed, it becomes inactive。No amount of lower temperature can restore it to its activity.

This questionSelect the wrong option, D is wrong, because the temperature at point C is too high, the enzyme loses its activity, and the temperature decrease cannot make it reactive, so D is chosen. Do you ** don't understand? You can continue to ask

The figures in the title are schematic only and have no quantitative data. Therefore, it is impossible to see how much of the final activity remains.

Of course, if you insist on raising the bar, the graph shows that there is still a high catalytic activity in the end. Then it's not impossible. Because, different enzymes have different adaptability to temperature.

Moreover, the specific structure of the enzyme is destroyed, and it is not necessarily completely destroyed. It may be that its structure is indented, slightly distorted and mutated, and it cannot be accurate and efficient when combining, but it can still be effectively combined and catalyzed, but the efficiency is reduced.

Sister chromatids refer to one and are single. It is very famous, the figure is two monomers forming a chromosome, if you want to say that the chromosomes are arranged on the equatorial plate, it cannot be said that the chromatids are arranged on the equatorial plate. And at any time, it cannot be said that the chromatids are arranged on the equatorial plate.

When the chromatids are separated, they are no longer called sister chromatids, and they become two chromosomes.

There are two possibilities for the generational relationship of the two tubes of Drosophila:

First, A is the parent and B is the offspring; The second is that B is the parent and A is the offspring.

When A is a parent and B is a descendant:

The genotype of Drosophila long-winged Drosophila in A is VV (if it is VV, there will be no residual wings in the offspring), the genotypes of long-winged flies in B are VV and VV, and the genotype of residual wings is VV.

When B is the parent and A is the offspring:

The genotype of the long wing in B is VV (if there is a VV, there will be a residual wing in A), and the genotype of the residual wing is VV; The genotype of the long wings in the nail is VV.

Therefore, to determine who is the parent and who is the offspring, the key is to determine whether there is VV in the B tube of Drosophila. If there is, A is the parent and B is the offspring; If not, B is the parent and A is the offspring.

Therefore, they use B to mate with long-winged stump wings.

Bio bar bar friends come to make soy sauce

Same sauce... Echizen you water water to the bar, too, okay.

； 5；There are centrosomes (organelle 2) in the cell

2) it is a repository of genetic information, a center of cellular metabolism and heredity and control; Which number of chromogens to dye.

3) chlorophyll; There is a nucleus coated with a slow mass without a nuclear membrane. Big orange.

Students, you have to figure out the cause and effect and the relationship between the before and after, uremia is caused by kidney lesions, harmful substances can not be eliminated in time, and the result is a change in the internal environment, and the change in the internal environment can be caused by many reasons, it cannot be said that uremia is "a disease caused by obvious changes in the composition of the internal environment", the root cause is not in the internal environment.

"Anemia" is a common clinical symptom of a decrease in the volume of red blood cells in the body's peripheral blood that is below the lower limit of the normal range.

Anemia is a problem in the cells, so it does not belong to the internal environment, and it is caused by the indirect situation of the lack of oxygen in the tissues.

The internal environment includes extracellular fluid.