Answer:
controlled the fertilization process.
Explanation:
Mendel took precautions to avoid contamination by pollen through self pollination of the P generation. He controlled the fertilization processes between the plants. He self pollinated the first pureline varieties to form the P generation. He then cross pollinated them to get F1 generation. Every step of his experiment was controlled.
Group 18 non reactive and non metallic
The process is called photosynthesis and it takes place in the chloroplast of a plant cell
Distillation is a process that could be used to separate dissolved particles from the liquid in a solution.
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