By changing the controlled variable.
This process is called Cloning. Cloning is the process of producing genetically identical copy of an organism or a cell, which may occur naturally or created in the lab. Naturally it may occur through processes such as asexual reproduction in organisms such as bacteria; where offsprings that are genetically identical to the parent are created. In the above case, it is done artificially to generate identical plants using growth hormones.
Answer:
The effect would be that the green leaves, which contain chloroplasts, containing a chemical called chlorophyll would enable the plants to take in more energy in the form of sunlight, enabling the plants to photosynthesise and grow.
Explanation:
A keystone species is an organism that helps define an entire ecosystem. By keeping populations of mussels and barnacles in check, this sea star helps ensure healthy populations of seaweeds and the communities that feed on them—sea urchins, sea snails, limpets, and bivalves.
