Junior Biology Eggs are not living organisms

An egg is an egg cell. Fertilization is a fertilized egg.

Organisms need to have a complete metabolism!

The common material basis of living organisms is that they contain proteins and nucleic acids in their basic constituent substances. The structural basis of an organism is:

With the exception of a few species such as viruses, living organisms are made up of cells. Viruses do not have a cellular structure and need to rely on host cells to reproduce, so life needs cells to behave, and viruses are no exception.

The basic characteristics exhibited by living organisms can be simply boiled down to the following:

1) With the exception of a few species such as viruses, living organisms are made up of cells;

2) organisms have a metabolic role;

3) Organisms have growth phenomena;

4) Organisms are stressful;

5) Organisms are capable of reproduction and development;

6) Organisms have genetic and mutated properties;

7) Organisms can adapt to a certain environment and can also affect the environment;

8) Organisms are required to take in nutrients from the outside world.

9) Organisms are malleable.

10) Organisms are able to breathe.

All of the above basic characteristics are possessed only by living organisms, and cannot be possessed by non-living organisms. Therefore, these basic characteristics are important markers for judging and distinguishing living things from non-living things.

Normally, you don't have much trouble distinguishing what is an organism and what is not, but when you are actually asked to express what is an organism in words or words, things are not so simple. In fact, it is extremely difficult to come up with a scientific definition of living organisms, and humans have not been able to solve this problem before.

Some people think that living things are living things. It is true that all living things are living things, so are all living things, on the other hand, living things? The answer is no!

Because not only an organism has life, but also a part of an organism can have life. For example, a green leaf, a heart to be transplanted, red blood cells and white blood cells in blood. However, these living objects, one would not consider them to belong to living organisms.

So, a living object is not necessarily an organism.

Reference encyclopedia. To judge an organism, the main thing is a complete metabolism!

Yes, definitely. Broadly speaking, an egg is the egg cell of a chicken. As long as it is not cooked, it has biological activity and metabolism, of course, biologically.

Eggs are chicken eggs, this I asked the biology teacher in class.

The fertilized egg is not biological and said.

The term "living beings" is a general term, and in the case of specific living individuals, the scientific term is "living organisms".What distinguishes living organisms from non-living organisms is that they have several basic characteristics:

1.Metabolism; 2.Able to grow and develop; 3.Stressful; 4.It is possible to reproduce offspring, etc. (among some other characteristics).

Chickens, like other animal or plant individuals, have the characteristics of life and belong to living organisms. The egg does not fully possess the general characteristics of the organism (such as not being stressed, cannot grow and develop before the incubation conditions are reached, the egg itself cannot reproduce, that is, it cannot regenerate eggs or multiply by other means, etc.), it is just a germ cell with an accessory structure, which belongs to a part of the organism (chicken), even if it has left the organism. It's like cutting off a rat's tail, which is not an organism, but only a part of the organism (the rat), an out-of-vivo organ that is alive (for a short time) or an out-of-vivo organ that has lost its life (after a long time).

It is the plant body that is more likely to cause misunderstanding. You might think that fruits such as tomatoes, apples, and peaches are of course "living things".In fact, a tomato and an apple tree belong to living organisms, but the tomato fruit, like the leaves, roots, stems, etc., is just an organ, whether it is out of the body or not, or whether it loses its life (such as turning into dead leaves, etc.).

At the same time, it is necessary to clarify another concept, which is either "living things" or "non-living things", no, as long as you start from the concept of "living organisms", it can be easier to understand.

Organisms are living individuals. The most important and basic characteristics of living organisms are their metabolism and heredity. Eggs, on the other hand, do not have this metabolic characteristic.

There are six characteristics that a creature needs to have:

1.All living things have the same material and structural base.

2.All living things have a metabolism.

3.All living things are stressful.

4.All living things have the phenomenon of heredity and variation.

5.Organisms can adapt to a certain environment and can also affect the environment.

6.All living things have the phenomenon of growth, development and reproduction.

When blood flows through the brain, the blood exchanges substances with the cells of the brain tissues, and the nutrients and oxygen transported are used by the brain cells, and at the same time, the carbon dioxide and other waste products produced by the brain cells are transported away In this way, the blood changes from oxygen-rich arterial blood to venous blood with less oxygen The urea content increases in line with the changes in the content of each component in the figure.

The kidney is the organ that forms urine, when the blood flows through the kidney, due to the filtration of the glomeruli and the inner wall of the renal sac and the reabsorption of the renal tubules, urea and other waste products enter the urine and are excluded from the body, so the urea content decreases when the blood flows through the kidney, which does not conform to the change in the content of each component in the figure

When blood flows through the capillaries of the lungs, the blood exchanges gas with the alveoli, and the carbon dioxide in the blood enters the alveoli, and the oxygen in the alveoli enters the blood, so that the blood changes from venous blood with little oxygen to oxygen-rich arterial blood It does not conform to the changes in oxygen and carbon dioxide shown in the figure

The small intestine is the main organ of digestion and absorption, and as blood flows through the small intestine, the amount of glucose increases, which does not correspond to the changes in glucose shown in the diagram

Therefore, a

That's right, first of all, oxygen is reduced, glucose is eliminated, glucose is eliminated, and urea is increased, and B is eliminated, so only A can be chosen.

You see, the lungs are the first to be eliminated, because it is impossible for blood to flow through the lungs with a decrease in oxygen content and an increase in carbon dioxide content. Then exclude the kidney, because the kidney filters out glucose, the glucose content should be reduced a lot, and then the small intestine should be excluded, the small intestine should be less glucose content in the blood, and the outflow blood glucose content is high, the small intestine is the main absorption organ of the digestive tract. ONLY THE BRAIN IS LEFT ...

The landlord's question 3 is wrong, the 3rd question is a, the part where the fertilized egg is formed is the fallopian tube = =

22.Inspiration: diaphragm contraction, chest cavity enlargement, pleural space negative pressure, intrapulmonary pressure decrease, lower; Exhale the opposite. Venous blood, arterial blood, venous blood.

23.When blood flows through the glomeruli, in addition to blood cells and macromolecular proteins, some substances such as water, inorganic salts, glucose and urea in the plasma can be filtered by the glomeruli into the renal sac. The fluid in the renal sacs is called protourine.

When raw urine flows through the renal tubules, all glucose, most of the water, and some inorganic salts are reabsorbed by the renal tubules. The remaining water, inorganic salts, urea, etc., form urine. Bladder.

23.Glomerulus, tubular bladder.

This is the diagram of the male reproductive system, followed by the female.

is a cell, equivalent to a fertilized egg, so it is a living organism.