Please Help! Hurry!

Francesco Redi conducted the following experiment.

Jars of meat with covers did not have maggots.
Jars of meat with no covers did have maggots.

What was the independent variable in Redi's experiment?
A. the jar covers
B. the number of jars
C. the contents of the jars
D. the number of maggots on the meat

A. the jar covers

Explanation:

An independent variable is what you, as the scientist, changes.

fun caring loving person

solute : a solute is a substance that is dissolved in another substance is known as a solvent. it is mixed with a special mixture know as homogeneous mixture.

solvent: a solvent is a substance that dissolved a solute, which results in a solution is known as solvent.