I believe the answer is: biological
The biological level in this context refers to the intellectual capabilities of the poor people. In their studies, they use iq level as the idependent behavior and economic wealth as the dependent behavior in order to see if there is a strong correlation between the two.
D is the answer just so you know
This would fall under the 9th ammendment because the 9th ammednment says that there are other rights than the ones that are mentioned in the document . I hope thi helps :}
ummm question where is the chart so i can answer just send meh a link to it and ill answer
Answer: The correct answer is she has a quiet and kind nature.
Explanation: Victor and Teresa are the characters in "seventh Grade" by Gary Soto.