Well, the cell wall only appears in plant cell along with the chloroplast which is the energy making of the plant cell.
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Remains as snake is a cold blooded animal
Answer:
Your answer is C.Malaria
Malaria is caused by mosquitoes while others are caused by fungus.
The variable that researchers manipulate is the independent variable.
The reason for this is because in experiments different manipulations are often introduced. The sole purpose of these manipulations is to see whether they will affect our independent variable and if they will change its value.