Analog wave signals are continuous, if something is disrupted they have to be restarted. Digital wave signals can more easily pick up at the exact point the signal is dropped if something goes wrong. Digital wave signals are more reliable.
The answer is respiration.
Maybe immune system and respiratory system
Answer:
The carbon atom has unique properties that allow it to form covalent bonds to as many as four different atoms, making this versatile element ideal to serve as the basic structural component, or “backbone,” of the macromolecules.
All living things contain carbon in some form. Carbon is the primary component of macromolecules, including proteins, lipids, nucleic acids, and carbohydrates. Carbon's molecular structure allows it to bond in many different ways and with many different elements.
Explanation:
