Why would your muscle cells need to be supplied with more food when there is lack of oxygen that where there is plenty of oxygen present?

i dont know this but ask your teacher for !

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.