Gender, religious background, race
Male, Christian, White
Name is William
Female, Christian, White
Name is Michelle
Male, Hindu, Brown
Name is Raj
Female, Hindu, Brown
Name is Karnika
Etc....
Answer:
An observational study, not an experiment.
Explanation:
Researchers investigated reasons why different species of birds begin to sing at different times of the morning. They captured and examined birds of 57 species at different sites around England. They reported that there is a strong relationship between the diameter of a bird's eye and the time it starts singing in the morning: birds with larger eyes tend to start singing earlier.This is an example of An observational study, not an experiment.
A key feature of Aboriginal Australian culture is the astronomy. Their songlines can be traced through the sky and land.
The Incas had a centrally planned economy, perhaps the most successful ever seen. Its success was in the efficient management of labor and the administration of resources they collected as tribute. Economic exchanges were made using the barter system by which people traded with each other for things they needed.
The correct answer is A. Women could attend school.
