Adolescents ages 15-24 account for nearly half of the 20 million new cases of STD's each year. Today, two in five sexually active teen girls have had an STD that can cause infertility and even death. Also, though rates of HIV are very low among adolescents, males make up more than 80 percent of HIV diagnoses among 13- to 19-year-olds. STDs often have no obvious sign or physical symptom, so regular screenings are critical. The most effective way to prevent STDs is to abstain from sexual activity; if teens are having sex, they should be using a condom correctly and with every sexual act. – “Sexually Transmitted Diseases,”
Office of Adolescent Health, CDC

Which statement best explains the long-term consequence a young woman may experience as a result of sexual activity as a teen?

Young women will not experience long-term consequences of sexual activity if they use condoms.
Young women are more likely to contract HIV between the ages of 13 and 19.
Young women may not be able to find a partner free of STDs later in life.
Young women may not be able to conceive children as a result of contracting an STD as a teen.

Which of the following is a nonspecific defense against pathogens? - b cells - antibodies - t-cells - inflammation

Which of the following is also referred to as "swayback"? a. kyphosis b. scoliosis c. lordosis d. none of the above

The herpes viruses are important enveloped dna viruses that cause disease in vertebrates and in some invertebrates such as oysters. some of the human forms are herpes simplex virus (hsv) types i and ii, causing facial and genital lesions, and the varicella zoster virus (vsv), causing chicken pox and shingles. each of these three actively infects nervous tissue. primary infections are fairly mild, but the virus is not then cleared from the host; rather, viral genomes are maintained in cells in a latent phase. the virus can later reactivate, replicate again, and infect others.in electron micrographs of hsv infection, it can be seen that the intact virus initially reacts with cell surface proteoglycans, then with specific receptors. this is later followed by viral capsids docking with nuclear pores. afterward, the capsids go from being full to being "empty." which of the following best fits these observations? a) viral capsids are needed for the cell to become infected; only the capsids enter the nucleus.b) the viral envelope is not required for infectivity, since the envelope does not enter the nucleus.c) only the genetic material of the virus is involved in the cell's infectivity, and is injected like the genome of a phage.d) the viral envelope mediates entry into the cell, the capsid mediates entry into the nuclear membrane, and the genome is all that enters the nucleus.