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The yak is critical for the life and economic activity of the people on the vast and inhospitable Qinghai-Tibetan plateau and in the surrounding mountainous areas. The late Professor Cai Li went so far as to suggest that without the yak no civilisation would have developed in this region (personal communication ; Cai Li was a distinguished scholar at the South-west University of Nationalities who had dedicated himself to the lifelong study of the yak and the role of the yak in the life of the people).
From its very beginnings, the domesticated yak, descended from the wild yak, made not only the most important contribution to the livelihood of the herders and their families but was also involved in their culture, religion and social life.
The economically most important aspects of the yak's fitness traits and the productive and reproductive attributes of the yak will now be briefly summarised. Fuller descriptions and details can be found in Wiener, Han and Long (2003).
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When is variation most important in evolution?
When the immediate environment changes and stress is put on organisms. Then those who have the variation that will become beneficial in this environment will be reproductively more successful.
Are a person's genes or upbringing more important?
Upbringing, if parental care is meant, influences personality little, but other things, like overall happiness, are important products of parental care. The environment, especially the unique environment, is as important as the genes in all human traits. It is not a dichotomy and it is nature via nurture. What we measure is the squared variance from the mean, the differences in influence. We do not measure and can not measure the positive weight of either genes or environment influencing people.
Why is rollerblading important?
Rollerblading transforms the urban environment, it converts what was once an alienating, industrial wasteland into an interactive, usable space.
What does eviromeantal monatoring mean for kids?
Environmental monitoring is the process of monitoring the effects on environment. This is very important part of surveying.
List reasons why water is important to life?
water is important becausehalf of our body is made of it .It makes food .Water keeps our environment .It creates energy .In fact the world is only here because of water !
What is the collective noun for yaks?
The collective noun for 'yaks' a herd of yaks.
How Many Yaks are there in the world?
There are estimated to be around 14 million yaks in the world, primarily found in the Himalayan region of Asia. Yaks are well-adapted to high altitudes and are important for the livelihoods of many Himalayan communities.
Why are yaks becoming extinct?
Wild Yaks and endangered, domestic Yaks are not threatened
Are yaks producers?
no yaks are herbivorous
Does Alaska have yaks?
No Yaks in Alaska
Do yaks eat meat?
Yaks are herbivores
Are yaks mammals?
Yes, yaks are mammals.
What do yaks do no the rocky mountains?
Yaks do not have the movility in the steep hills. Yaks can not go where the goats roam.
How can you protect yak?
you can help keep yaks safe by not hunting them down and keeping their environment safe from any danger or harm
Do yaks adapt?
they are very well adapted to their own environment in the Himalayan regions, but cannot adapt to living in warmer climates
How many vertebrates do yaks have?
yaks have 3000000 vetebrates
Do yaks have horns?
No. Yaks are not snakes, they are mammals, related to the bovine family.
