Answer:
I'm pretty sure the answer is Option D (Recombinant DNA)
Explanation:
The answer that I would've put is not is not an option.
I would've put gel electrophoresis
Answer:
A. the digestive, muscular, and respiratory
Explanation:
Muscle weakness affects the muscular system (muscles are in the muscular system) , stomach pain affects the digestive system (stomach is a part of the digestive system), and coughing affects the respiratory system (coughing hinders the ability to breathe properly).
A target cell respond to a hormone because it bears receptors
The answer to this is true