which characteristic of life distinguishes a fire and a flowering plant? A. use of energy B. movement C. growth D. defined boundary

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

What is the difference between how ionic and covalent bonds form