Explanation:
so there blood can go in and out of there arteries and ventricles
Answer:
brown hair or black hair.
starts with sunlight and photosynthesis if you are talking about plants
X - linked traits appear more often in males because males only have one x chromosome. One copy of an x - linked trait is all that a male would need to possess that trait. Females have two x chromosomes, so they would require 2 copies of the x - linked trait in order to possess it.
