Explain why the elbow joint of a cow and the elbow joint of a human have similar

What has contributed to the growth of agriculture as big business in the midwest

Dr. robbins wants to know if there are different opinions regarding the value of public school education between native americans who have at least one relative who attended indian boarding school and native americans who have no family experience with indian boarding school. dr. robbins contacts 35 native american participants in each group. he wants each group to include younger as well as older adults, and a mix of male and female participants. he asks each person to complete a survey about their attitudes toward public education. the design of this study is:

Acase study allows a more detailed look at the life of a single subject than any other study