Answer:
1. specialized cells
2. extracellular protein fibers
3. a fluid known as ground substance
Explanation:
Answer:
Nucleic acids are macromolecules that store genetic information and enable protein production. Nucleic acids include DNA and RNA.
Explanation:
Nearly 99% of the mass of your human body consists of just 6 chemical elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Another 5 elements make up most of the last percentage point: potassium, sulfur, sodium, chlorine, and magnesium