Since this is movement that is occurring against the natural movement from high to low concentration, this is Active transport.
The option C.
I believe the answer is the weight of each tomato.
This is because the weight of each tomato depends on the amount of fertilizer (the independent variable/the thing being changed) added to each plant.
The answers are: condense; visible
Explanation:
In Prophase I, the chromosomes condense and become visible.
It is the comparison of the nucleotide sequences in DNA
The principle of Segregation sugests that a gene pair seperates