Alexa had a single sexual encounter with Jake about five years ago. Jake has just notified Alexa that he has tested positive for HIV. Which of the following may be true for Alexa? A. She may be in the clinical latency stage of HIV infection but have no symptoms.
B. If she has not developed any symptoms of infection by now, it's unlikely she has HIV.
C. If it turns out that she is infected with HIV, there is little she can do now to protect her health.
D. She is certain to develop full-blown AIDS within the year if she does not begin medication.​

There is only one copy machine at your office. you have to make 1000 copies of an expense report. after you begin copying, two other employees show up in the copy room. each has to make only 10 copies each. what is the proper etiquette in this situation?

Polydactyly is expressed when an individual has extra fingers and/or toes. assume that a man with six fingers on each hand and six toes on each foot marries a woman with a normal number of digits. having extra digits is caused by a dominant allele. the couple has a son with normal hands and feet, but the couple's second child has extra digits. what is the probability that their next child will have polydactyly? polydactyly is expressed when an individual has extra fingers and/or toes. assume that a man with six fingers on each hand and six toes on each foot marries a woman with a normal number of digits. having extra digits is caused by a dominant allele. the couple has a son with normal hands and feet, but the couple's second child has extra digits. what is the probability that their next child will have polydactyly? 1/8 1/32 3/4 7/16 1/2

Why does the body need calcium and what are the symptoms of calcium deficiency?