B is the correct answer because none of this that you put are testable.
Cells communicate through their own language of chemical signals. Different compounds, such as hormones and neurotransmitters, act like words and phrases, telling a cell about the environment around it or communicating messages.
Biotic refers to the living factors and abiotic refers to the nonliving factors.
Answer:
Explanation:
Proteins are important because they give you ability to fix broken bone or to grow.
Oxazolidinones, Ansamycins, and Tetracyclines
These class of antibiotics are mean't to disrupt bacteria that are gram positive.
