Question

early discoveries in science - cer practice
(explaining cer: https://youtu.be/bchah82xsd4 )
on a sheet of paper copy each short story. then identify the claim by highlighting green. find any evidence statements by highlighting yellow and finally write the correct reasoning statement.

1. in 1668, francesco redi wanted to know if meat could spontaneously produce maggots as many people thought at the time. redi believed that the maggots came from flies that lay eggs on the rotting meat. he placed one piece of meat in a jar and covered it with cloth. he left another piece of meat in a jar uncovered. after two weeks, he inspected the meat and found that the one in the covered jar did not have maggots, but the one open to the air did have maggots.

reasoning: if maggots were spontaneously being produced by the meat, then ...
a) meat in the sealed jar would have maggots
b) meat in the open jar would have maggots
c) meat in both jars would have maggots

Explanation:

If maggots were spontaneously produced by meat, the presence or absence of air (and thus flies laying eggs) would be irrelevant. So maggots should appear in both jars regardless of whether they are covered or not.

Answer:

c) meat in both jars would have maggots