Pregnancy, sexually transmitted diseases, and effects on one’s emotional health are all risks of .

The future for teen moms can be compromised due to the demands of parenting.

During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4

Which of the following can be effective in preventing the onset of viral infection in humans? a) taking vitaminsb) getting vaccinatedc) taking antibioticsd) taking drugs that inhibit transcription