We are a carbon-based life form. List three properties of carbon that make it an ideal element from which to construct a wide variety of complex molecules.

Which best describes red blood cells? a. they are colorless b. they protect against disease-carrying microorganisms c. they transport oxygen throughout the body d. they aid in blood clotting

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?

Which to produce involved from a symbiotic relationship of organisms which resulted in eukaryotic organisms contain chloroplast