A Multi-Celled organism has many cells (more than one). Examples would be plants, humans and animals/mammals.
A Single-Celled organism only has one cell that makes up it's entire self. Examples would be bacteria and archaea.
Answer:
The correct answer is: Genetic modification
Explanation:
Genetic modification, also known as genetic engineering, refers to the use of biotechnology for the genetic manipulation of an organism.
This process involves altering the genetic makeup of an organism in order to produce improved and better organism. The organism produced with the use of this technique is known as the genetically modified organism.
Therefore, the given example of selecting the strains of original weed and then cultivating and fostering to produce genetically modified product is called Genetic modification.
You can buy/use fertilizer products made specifically for the type of vegetable.