2006-09-11 02:09:20 · 6 answers · asked by Anonymous in Society & Culture ➔ Other - Society & Culture
In evolutionary history, and, specifically, the observation that different blood types (Type O, Type A, Type B, and Type AB) emerged as the environmental conditions and eating styles of our ancestors changed.
Between 50,000 BC and 25,000 BC, all humans shared the same blood type—Type O. These early humans were skilled hunters, and thrived on a meat-based diet.
The Type A blood type emerged between 25,000 BC and 15,000 BC, a necessary adaptation to a more agrarian lifestyle.
Climatic changes in the western Himalayan mountains led to the appearance of Type B, and the blending of Type A and Type B blood types in modern civilization resulted in the appearance of the Type AB blood type.
So, it's evolution that is the reason our blood types differ.
Hope this helps.
2006-09-11 02:20:32 · answer #1 · answered by sarah b 4 · 0⤊ 0⤋
people favor to segregate themselves from one yet another; for although reason. activities crew, trend experience, pores and skin color, beliefs etc. i don't know what the actual reason is for racism. i'll surely speculate. it would want to be because the 'higher guy' likes to %. on the 'smaller guy' (minority). possibly because someone feels there united states is being 'taken over' with the help of a particular race, for this reason holds a grudge hostile to the comprehensive race. may be because of many motives. Racism isn't an analogous for each body. i might want to communicate continually about racism, yet i'm too busy today. in my opinion, a small degree of 'racism' is proper, I see it as a delightful rivalry between 2 activities communities. in spite of the reality that, i do no longer condone people judging others otherwise because of a race. i know it may look arguable what I basically suggested, besides the undeniable fact that it truly is my concept. i have had friends of all kinds of diverse backgrounds, and that i did not evaluate them lesser friends then people of an analogous color as me - it would not make experience to imagine like that. Sorry if this makes no experience, or is taken the incorrect way. I propose no longer something with the help of it. i'm no longer racist, and may want to in no way evaluate myself to be. Cheers, -Aidan.
2016-11-26 00:53:25 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The evolution of antigens to protect our blood from various diseases. It has to do with where the people came from and what they were exposed to while they were there. There are over 400 known antigens, most of which are exceedingly rare. Blood types are related to what ethnic background you have, as well.
2006-09-11 02:17:56 · answer #3 · answered by sovereign_carrie 5 · 0⤊ 0⤋
I guess it's like personalities and characters. Same as human natures, we can't all be the same. I know it's a bland answer but it's all I can come up with.
2006-09-11 02:12:56 · answer #4 · answered by Sick Puppy 7 · 0⤊ 0⤋
Evolutionary variation
2006-09-11 02:17:45 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Becasue we are made in His image.
2006-09-11 02:13:16 · answer #6 · answered by coolmom 3 · 0⤊ 1⤋