In humans, for example, about one in 70 people carry a recessive gene for albinism, and about one in 20,000 humans are albinos. At least 300 species of animals in North America have albino individuals.
Answer:
As the river erodes the landscape in the upper course, it winds and bends to avoid areas of hard rock. This creates interlocking spurs, which look a bit like the interlocking parts of a zip. When a river runs over alternating layers of hard and soft rock, rapids and waterfalls may form.
The correct answer is B. its role as the crossroads of the world. <span>China's diverse topography and location have resulted into this development. </span>Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
A-through an optimistic viewpoint.
The mineral-rich dust and slit that Farmers benefit from is
the loess. This is a type of slit in which has the capability of forming top
soil that are fertile in which this is being transported and deposited through
the wind. They likely exhibit a yellowish brown or buff in color.