Multiple Choice
Refer to the figure below illustrating Louis Pasteur's experiment on spontaneous generation. 
Why was the neck broken on one flask but not the other?
A) To ensure that conditions were the same in both experimental setups
B) To prevent contaminants from getting in through the neck
C) To allow dust to enter into the broken flask but not the unbroken one
D) To show that the neck of the flask does not introduce an added variable to the experiment
E) To allow air to enter the control flask
Correct Answer:
Verified
Correct Answer:
Verified
Q168: Chemical reaction rates vary depending on the
Q169: Miller and Urey's 1954 hot chemistry experiment
Q170: With a few exceptions, each human cell
Q171: Which factor contributes to the strength of
Q172: Laboratory experiments with pure samples of either
Q174: Refer to the figure below showing the
Q175: Which statement about the "RNA world" model
Q176: According to the chemical evolution theory of
Q177: Redi performed experiments using raw meat and
Q178: The diversity found among DNA molecules is