Read the passage below.Prior to the 1970s, scientists thought that new neurons could not be generated in adult brains. In the 1970s, Dr. Goldman and Dr. Nottbohm discovered that hormones injected in adult songbirds could cause female songbirds to develop new neurons.Which statement best exemplifies the scientific principle that was involved in this case?
Answer
A
New experiments do not affect science because science remains constant.
B
New experiments can affect future scientific explanations.
C
New experiments can affect previous scientific explanations.
D
New experiments yield untrustworthy data and should be carefully considered.
Explanation
The earlier scientific explanation was that adult brains could not generate new neurons. The experiments on songbirds produced evidence that hormones could cause new neurons to develop, so scientists had reason to revise that prior explanation. This illustrates that new experiments can affect previous scientific explanations; choice C states this principle.
AI-written and checked against the verified answer.