In order to conduct an experiment, there are variables (parameters) that are dependent on the experiment. These variables can be either dependent or independent.

You are watching: To test how fertilizer affects tomato plants

Dependent variables are those that cannot be changed throughout the experiment and are dependent on the independent variables.

On the other hand, the independent variables are those whose changes can have an effect on the experiment. These are the parameters that control the experiment.

In the above-given experiment, the amount of fertilizer is a factor that can be tested, as the amount of fertilizer is determined that is required for the entire crop field, containing tomato. It means that the amount of fertilizers needed to put on half of the plot will be again required to put on the remaining half of it.

Hence, the correct answer is option (A).



Answer from: nayelidlc2

the correct answer is b the tomato plants in all the unfertilized plots

Explanation: apex



Answer from: jhunruh6247

B. the tomato plants in all the unfertilized plots.

Explanation:

hope it help .



Answer from: JuanTorres7

c

Explanation:



Answer from: noahmccall647

Control Group - tomato crop on which no fertilizer is applied

Explanation:

The control group in this experiment is the tomato crop on which no fertilizer is applied.

A control group in an experiment is the group on which the testing/treatment with in an experiment is not applied in order to compare it with the group that receives the testing/treatment.

Hence, tomato crop (which do not receive fertilizer) are the ones whose production will be compared with the tomato crops that receive fertilizers.



Answer from: keriyannafultz

D

Explanation:


Answer from: mytime8774

D. The tomato plants in all the fertilized plots

Explanation:

The independent variable in this case is the fertilizer, because it is the one that is changed in this experiment. This is your clue on how to determine the experimental group.

The experimental group is the group the independent variable is applied on. The group that is not subjected to the independent variable is called the control group.

This is done to ensure that the changes in the experimental group was indeed brought about by the independent variable by comparing the difference between the two groups.


Answer from: montgomeryaevans

putting no fertilizer on the other half of the plots is set to be the control experiment.

Explanation:

hope it helps .


Answer from: wyattlb97
A.all the weedy plants in all the plots

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