Homologous traits are characteristics that come from a common ancestor. Therefore, the reason why related species share homologous traits is that they came from a common ancestor.
Answer:
A trait that is going to be dominate is the No Cleft because it is the most produced data.
Surveying different people like your friends will add data that could be random, unlike just doing a data analysis on your family where the results will be similar, adding outside data will "Spice things up" and make it interesting.
I can help you out with some but I can not just do your homework for you, this looks like a whole lab assignment, If you get confused let me know and I can help you with the rest but I can't do it all for you.
Explanation:
The exception is: regulation of blood protein levels.
The best answer is B.
An animal like the Llama lives in high altitudes from 7,400 to 12,800 meters above sea level.
When compared to other animals, Llamas have a lot more red blood cells per unit than other animals. More red blood cells mean more hemoglobin.
When hemoglobin combines with oxygen, oxyhemoglobin is formed. Thus oxyhemoglobin in Llamas is greatly increased than in most other animals and the Llamas are able to thrive in high altitude areas where oxygen is thinner.