Dark white and brown people The difference in skin color between black people

This statement is too extreme.

The black people are mainly inhabitants of Africa, distributed in the central and southern parts of Africa, especially in the sub-Saharan Desert; There is also a black population in the Americas, descendants of blacks who were trafficked from Africa by colonizers.

Brown people, also known as Malayo-Polynesians, are similar to black people, with brown complexion, black hair, wide nose and broad lips, mainly distributed in Australia, several islands in the Pacific Ocean and southeastern Asia.

Due to the continuous progress of human society, increasingly frequent exchanges, interracial marriages, and mixed blood relations, resulting in a mixed situation of races, some new types of mixed races have been formed, and the number of people of mixed race has been formed.

In the Americas there are the Messos (Indians and Europeans), the Mora (blacks and whites) and the Sambauers (Indians and blacks), and in Africa there are the Cape colours (Europeans and), among others.

In addition to the African continent, there are also black people in North America, who are descendants of black slaves who were trafficked to the local slaves, and there are also black people in India and Sri Lanka.

The black race is the black race, also known as the Negro race, the Negro race, the equatorial race, is a group of people divided according to the heritable traits in the constitution, and is a kind of human taxonomy theory.

Caucasians generally have a dark complexion, black wavy or curly hair, a broad, flattened nose, a low or medium nasal base, a small protrusion of the nose, large transverse diameter of the nostrils, convex lips, a wide mouth, thick lips, and less beard and body hair.

Third, it is also affected by diet. There is one last problem, that is, because they are very short of water in this part of Africa, but in the Americas, water resources are indeed very abundant, which causes people to make their usual diet more diversified, and water resources are more abundant, and the poisons in the body can be discharged more easily, so the skin color has also been lightened accordingly.

Because the temperature in Africa is very high, the ** exposure to people is very strong, so the color is darker.

Black people in Africa tend to tan in hot areas. The black ancestors of the United States were mixed-race, not too black, resulting in the fact that the current blacks are not too black.

Because blacks in Africa are poorer than blacks in the United States, most of them can't do maintenance, so they are getting darker and darker.

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. Caucasians.

**White, light brown, gray eyes, light blue, golden yellow wavy hair, thin nose bridge, thin lips, tall stature, located in Oceania.

South, 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.

The more pigment cells in the complexion, the darker the complexion. From the perspective of geographical distribution, the skin color of the human race gradually changes from the equator to the poles. Equatorial region.

Solar radiation is strong, and the pigment in the increase is increased to protect the person from ultraviolet rays.

Harm. Races** between high and low latitudes are yellow.

The difference in appearance of each race is due to the result of adaptation to the environment, and it cannot be said which color of the person is noble and which color is low, and there should be equality between the various people.

Most of them are black, yellow, and white.

In physical anthropology, there are usually three or four divisions of modern races. The rule of thirds combines black and brown people into one large group, and the rule of quarters separates the two. This shows that there are certain differences between the two, and there are also many similarities.

Brown people are mainly found in Australia, central and eastern India and some islands in Oceania, with dark brown skin color, wavy hairstyle, and well-developed beard and body hair. It is different from the dark skin tone and curly hair of a typical black person.

Yes. The ** of the pure black race is dark and dark, and the brown race is somewhere between the black and yellow races. In addition, genetically speaking, black people are generally stronger, more muscular, and physically fit better than brown people.

Absolutely. First of all, you have to understand what kind of ideology racial discrimination in the United States is, and it also discriminates against blacks in China, so Chinese people generally think that racial discrimination in China is the same as racial discrimination in the United States, but the degree is different. So most people have misconceptions about racial discrimination in the United States.

First of all, racial discrimination in the United States is based on racial superiority, based on the Andrew Saxon concept of national superiority and top-down view, not because of black laziness, high crime rate, the kind of antipathy and discrimination from society and life, and from the bloodline, based on this, in the United States, any colored person is the object of their discrimination, including Chinese, Japanese, African, Indian, but blacks are in trouble, so I feel that American society is simply black and white.

Before and after the founding of the United States (at that time, the American race was relatively single), they believed that they were God's chosen people, and Americans "had the obligation to educate which uncivilized races", and that the Americans were actually mandated by God to expand their territory in the Americas. Whether it is the scalp policy of 200 years ago, or the law of the crickets in the Vietnam War, and the current Five Eyes Alliance, there is a shadow of white supremacy.

To sum up, discrimination in the United States is based on blood, in fact, once you intermarry, then you are not "excellent", and you will also become the object of discrimination.

As long as you are Chinese, you will be discriminated against when you go to the United States. Because of different nationalities, different ways do not conspire with each other. Americans are not as generous as us Chinese, small-bellied chicken intestines.

Whether the current NBA can play or not has little to do with racial discrimination, it still depends on ability and state, so many black players perform well on the court, not because of race but because of ability.

The genes that control skin color are not yet fully studied.

In 1910 and 1913, scholars studied the heredity of human skin color, and there was a clear difference between the pigmentation in black people and the pigmentation in Caucasians. Therefore, the color of ** is black and white. The analysis of the phenotype of children born to purebred blacks and purebred whites after marriage and the children born to mixed-race children found that there were different differences in skin color, and different skin colors could be divided into five categories.

According to the classification results, the color of ** is normally distributed, so skin color can be considered a polygenic trait. So how many pairs of genes is controlled by this trait, why does the skin color of the second generation appear in 5 grades?

According to the law of free combination, the reason for the emergence of 5 grades (i.e., 5 phenotypes) is the result of the action of two pairs of non-allelic genes, that is, the inheritance of skin color involves two pairs of genes. According to the polygenic hypothesis, A1 and A2 are valid genes for melanin, A1 and A2 are null genes for melanin, and the genotype of the hybrid generation is A1A1A2A2 (mixed race), and the skin color of the hybrid generation is between the two parents.

Mixed-race children were mated to each other, and the phenotype of mixed-race children fell into 5 different pigmentation levels. From the genotype, it can be seen that due to the cumulative effect of the number of effective genes A1A2 and the effect, five grades of skin color are formed. That is, the phenotype with no effective genes in the genotype is Caucasian, the phenotype with one effective gene in the genotype is light mulatto, the phenotype with two effective genes in the genotype is mulatto, the phenotype with three effective genes in the genotype is dark mulatto, and the phenotype with four valid genes in the genotype is black.

To this day, the exact number of genes that control skin color is still inconclusive. There are also people who have analyzed hundreds of offspring in different marriage combinations and believe that skin color is controlled by 3 to 5 pairs of alleles.

The yellow race, on the other hand, is actually a melanin between the white race and the black race, and there is no yellow pigment.