Answer:
I am not sure if this is what you are looking for, but possibly enzymes.
Specialized enzymes and chemicals are the body’s final defense against pathogens.
"Please tell me more, I do not quite understand"
Chloroplasts could be found in blue-green algae
Answer:
In its modern form, the metric system is called the _____ system, which is an abbreviation for the "International System of Units." The official measuring system in the United States is the metric system.
