Describe the advantages of a four chambered heart compared to heart with two or three chambers

Leila has dimples because she received a gene copy from her father that coded for dimples. this means that dimples are an example of a trait that is

How can you tell the difference between rough er from smooth er?

Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above