The control group in this experiment is the group of tomatoes that do not receive any fertilizers i.e. fourth tomato plants.
<h3>What is Fertilizer?</h3>
Fertilizer may be defined as any chemical or natural substance which is added to the soil with the intention of enhancing productivity.
All those groups of tomatoes in which fertilizers are added behave as a reference group while those in which fertilizer is not added behave as a control group.
Therefore, it is well described above.
To learn more about Fertilizers, refer to the link:
brainly.com/question/24544067
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A. disconformity. I hope i helped you.
Cell walls are supporting structures that help the plant to have a fixed shape and protect it from injury. Other than that, it helps to keep the plant turgid so that it can stay firm and upright. Because when it enters a high water potential solution, as water moves in, the water exerts turgor pressure on the cell wall and the cell wall thus exerts an opposing pressure to keep water out. Hence cell wall is needed for the plant.
On the other hand, animal cells do not need to keep the structures, as they have the skeletal system to protect the organs and cushion them against any
external injuries.
I hope that helped
Both have an inverse relationship.
Explanation:
The two have an inverse relationship, that is, when elevation increases, atmospheric pressure decreases.
This is due to the amount of air on top of you at your current elevation.
At lower elevations, you have more air above you, and thus more pressure.
At higher elevations, you have less air above you, and thus less pressure.
At high elevation food takes longer time too cook due to low pressure, so at high altitude pressure cooker is used to cook food.
OK, :)
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