Many separate genes contribute to the human height, so it is the example of polygenic inheritance. Still, height is not sex linked trait. Sex linkage means that the expression of an allele is dependent on the gender. Height could not be a sex linked trait since both men and women have height, but the variations exist. Difference between men and women regarding the height is the consequence of the sex hormones on the height.
It doesnot have a nucleus to increase the surface area
Explanation:
Red blood cells carry oxygen from our lungs to the rest of our bodies .Then they make the return trip, taking carbon dioxide back to our lungs to be exhaled.
