Write the letter of the term or phrase that best describes how each numbered item function? 1. Virus envelope A. security guards get sick and die
2. bacteriophage B. door key
3. HIV infection C. a rumor being spread among people
4. influenza D. a hypodermic needle

what's the question?

she forgot to record a transaction

atp is used for energy.

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called