Which populations compete with one another for food? mouse and spider sparrow and snake mouse and grasshopper
snake and grasshopper spider and sparrow sparrow and grasshopper

i am almost positive that its a

bc blah

explanation:

bc blah

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.