Answer:
Lab technician
Explanation:
Chemical used is the main independent variable. Cell growth was the dependent variable or response variable. The cell type and dose are both being tested within the experiment leaving lab technician.
Answer: A)Control : no photograph
Dependent: whether they returned it or not
Confounding:time of day
B) people have the need to see themselves as righteous so to raise their self esteem and maintain their image they’ll do something good
C)they valued their own interest ?? (Not sure)
D)maybe the ppl who picked up the wallets were young, so the older couple’s photograph would be an out group “them” compared to the young “us”
E)higher
Explanation:
What the heck are you studying lol?
Answer:
An organism, an organism is a biotic(living thing)
