Multiple Choice
A manipulative field experiment was conducted to test the hypothesis that nitrogen pollution affects biodiversity.In this study,a field was treated for 4 years by adding nitrogen to it regularly.A potential limitation to this study is:
A) It was conducted on only one soil type
B) It was run for too long so you cannot trust the results
C) Confounding variables were not held constant
D) Biodiversity is not a reliable indicator for this research question
Correct Answer:
Verified
Correct Answer:
Verified
Q36: There is a 100 square meter rectangular
Q37: There are important factors that influence the
Q38: _ are use to express variability around
Q39: You design an experiment to test how
Q40: You complete a rigorous scientific study of
Q42: Variation in your data affects the standard
Q43: You conduct an experiment to test if
Q44: Which field of ecology studies trends and
Q45: If an ecologist studies interbreeding between populations
Q46: In your experiment,you manipulate temperature to test