What are the skin colors of human beings, and there are several skin colors in the world

There are 6 colors of people in the world. There are six skin tones in the world, namely red, yellow, brown, blue, black and white, which is mainly due to the different amounts and distribution of melanin in the world. Melanin is a protein derivative that is brown or black in color and is produced by melanocytes.

Due to the different amounts, sizes, types and distribution of melanin, different skin tones are determined.

The melanin in the yellow race** is mainly distributed in the basal layer of the epidermis, and less in the spinous layer; In black people, there is a large amount of melanin in the basal layer, spinous layer and granular layer; The distribution of melanin in Caucasians** is the same as in yellow people, except that the amount of melanin is less than that in yellow people.

Race is a group of people who are classified according to heritable traits in their constitution. People in the world are usually divided into four races according to their skin color, hair shape and other physical characteristics: Mongoloids or yellow people, with yellow complexion, straight hair, flat faces, flat noses, and wide nostrils; Caucasoids or Caucasians.

White, high, narrow nose, wide range of eye colors and hair types; Negroid, or black, is black, with thick lips, a wide nose, and curly hair; Australians (australoids) or brown people,** brown or chocolate color, brownish-black and curly hair, broad nose, well-developed beard and body hair.

Fair, wheat-colored, barley-colored, normal, dark, very black, white, very white.

Human skin is not only black, white and yellow, but also a blue race, which is blue and healthy all over the body.

There are four types of skin that exist now, and scientists have recently discovered a fifth skin color, but this kind of person has no offspring now!

Hello landlord, there are many ways to say about this issue, there are three kinds of yellow, black, and white, and there are also yellow, white, black, and brown, and there are six kinds of them... But most people are more familiar with yellow, white, black, three, as for whether there are really so many kinds of this, I don't know, I hope it can help you.

In addition to white, yellow, black, and brown, there is also a blue ** person in the world. (Avatar .......)）

There are only four types of rice dumplings: yellow, black, white, and zongzi.

3 kinds, namely yellow**, black**, white**. Asians are mostly yellow**, Africans are black**, Europeans are white**, and Americans are half white** and half black**.

In addition, there have been reports of rare green and blue species found by archaeological expeditions in tropical rainforest areas, although these have not been fully evaluated.

Human beings are like a mirror, reflecting their vitality and health status. People with different health conditions have different skin tones, and there are very obvious differences in skin color between different races. Yellow people have a pale yellow complexion; Black people have dark complexions; Caucasians' skin tones are light and pale in color.

So, why are there people of different skin colors in the world?

The color is mainly determined by the amount of melanin in it. Melanin is a black or brown particle, and its main role is to block the damage of ultraviolet rays in the sun's rays to the cells below the human body**. When the sun is stronger, the amount of melanin increases, so we get tanned in the summer.

The color of human beings is the result of adaptation to nature in the process of evolution. Africans living in the equatorial region, due to ** are often strongly affected.

When exposed to sunlight, a large amount of melanin is produced in the body, so Africans** are black. In the alpine land less, so, ** is white. Yellow people generally live in temperate regions, the intensity of sunlight is in the middle, and melanin is also in between, so the color of ** is also between the two people.

Scientists have found that there is no difference in the ancestors of human beings at the beginning, and the skin color is basically the same. It was only later that people moved to different regions and gradually developed differences in skin color in order to adapt to the outside environment.

People can be divided into four types according to their skin color. They are yellow, white, black and brown.

Generally speaking, people can be divided into three types according to their skin color, one is yellow, the other is Caucasian, and one is black.

According to the skin color, people can be divided into three types: black, white, and yellow.

Human skin color is mainly black, yellow, white, and brown, and according to the division of human skin color, it is divided into three major races.

According to the classification of skin color, it can be divided into three types, white, yellow and black, among them, we Asians ** is yellow**.

It is divided into 3 types, namely yellow, white and black, you can refer to what skin color you belong to, black is generally not too much, mostly yellow and white.

In the world, there are three main races: white, black, and yellow.

And then there's: the mestizo.

Caucasian characteristics:

**White, golden hair, vigorous body hair, blue eyes, belonging to the colorless race. (All other races are people of color) (mostly live near the boreal zone).

Black characteristics:

Short, curved hair, black, black eyes, little body hair, (mostly living near the equator) yellow characteristics:

Yellow**, brown eyes, brownish-black hair, mostly lives in temperate regions.

The skin color of a person is divided into four types: yellow, white, and black. Four Chinese costumes.

The world can be divided into four types of people according to skin color: white, yellow, black, and brown.

The three skin tones are yellow, white, and black.

Nowadays, people's skin color is mainly black, yellow, white, and brown, and according to the division of people's skin color, they are divided into three major races, which are yellow, black, white, and brown.

A person's skin color can be divided into yellow, black, and white, and I hope it will help you.

Four skin tones. White, black, yellow, brown.

1. Mongolian people or yellow people, yellow complexion, straight hair, flat face, flat nose, wide nostrils, medium body hair;

2. Caucasians or Caucasians. **White, high and narrow nose, many eye colors and hair types, rocky shape, body hair;

3. Negros or black people, **black, with thick lips, wide nose, curly hair, and little body hair;

4. Australians or brown people, **brown or chocolate color, brown-black and curly hair, wide nose, well-developed beard and body hair.

People in the world should have three skin tones, different regions have different skin tones, and people's skin colors have yellow, black, white, and three skin colors.

Caucasians, also known as Eurasians or Caucasians, are the most populous people in the world, accounting for about 54 of the world's total population.

The yellow race, also known as the Asian American race, is the second largest human race in the world, accounting for about 37 of the world's total human dry beam potato population.

Black people are the third largest human race in the world, accounting for about the total population of the world.

1. Yellow race: **Yellow (brown) color, brown eyes, black and straight hair, medium height nose bridge, medium lips, medium stature, located in central Africa, southern Asia;

2. White race: **White, light brown, gray eyes, light blue, golden hair with slag wavy hair, slender nose bridge, thin lips, tall stature, located in southern Oceania, Europe;

3. Black race: ** black brown, black (brown) eyes, short and curly hair, low and wide (flat) nose bridge, thick lips, long body and limbs, located on the southern shore of the Arctic Ocean.