Answer: Certain traits increase in frequency in a population because when recombination occurs during sexual reproduction, genes are usually shuffled so that each parent gives its offspring a random assortment of its genetic variation, so the frequency of a gene may increase in a population through this genetic variation. One quote from a source I read states, "When recombination occurs during sexual reproduction, genes are usually shuffled so that each parent gives its offspring a random assortment of its genetic variation. However, genes that are close together on the same chromosome are often assorted together. Therefore, the frequency of a gene may increase in a population through genetic hitchhiking if its proximal genes confer a benefit."(lumen) This quotes explains why certain traits increase in frequency in a population.
Work Cited: https://courses.lumenlearning.com/boundless-biology/chapter/population-evolution/
Brachiocephalic is the blood vessels that is marked in the angiogram. A Branchiocephalic artery is an artery of the mediastinum and it supplies blood to the right arm and to the head and neck, it also supplies blood to the tissue of the brain.
Answer:
The answer to number 7 is A. Hibernation