Jamal is testing muscle strength in frogs. He thinks that their muscle strength will increase if more protein is added to the frogs’ diet. To test this, he increases the protein in twenty frogs’ diet. He leaves the other twenty frogs’ diet as is. Jamal then places the frogs on a line and measures the distance they can jump. He performs the experiment every day at the same time using the same measuring stick.
What represents the control group?
the frogs that did not get the extra protein
the frogs that got the added protein
Jamal’s use of the same measuring stick
Jamal’s use of twenty frogs in each group
Answers
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The frogs that did not get the extra protein represents the control group.
Option (A) is correct.
Explanation:
- The control group is the one which is used as a standard group to which comparisons are made.
- This group is separated from the rest of the experiment.
- It has two types: Positive and negative.
- In experiments there is always an experimental group and a control group.
- What represents the control group?
- The frogs that did not get the extra protein represents the control group.
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Answer:
A. The frogs that did not get the extra protein
Explanation:
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