This is an experiment where the researcher manipulates one variable, and control/randomizes the rest of the variables. It has a control group, the subjects have been randomly assigned between the groups, and the researcher only tests one effect at a time.
Option D, they are watered more often than tomatoes grown in other gardens, is the right answer.
The improper watering to the tomato plants can lead to several cultivation issues. Watering tomatoes at after drying them out can also lead to tomatoes to swell suddenly and splitting the peel of the tomatoes which permits fungal germination to take hold causing the complete ruin of the fruit. Therefore, it may noticed that watering plays an important role in the cultivation of tomatoes. It is clear, therefore, that the reason behind the juiciest tomatoes is the watering; the Botanist watered tomatoes plants of his garden more than they were watered in other gardens.
It shows evolution and growth from the past and present
The ribosome is involved with the bonding of amino acids
