The embryonic stage of pregnancy lasts from question 4 options: 8 weeks after conception to birth. 2 days after fertilization to 8 weeks. 2 weeks after conception to 8 weeks. 2 days after implantation to 8 weeks.

*edit* i took the test and i picked a and it was incorrect for its c! rank the following suggestions for preventing std, in order of increasing effectiveness. 1) using latex condoms properly 2) using spermicidal foam or jelly with a monogamous partner 3) abstaining from sexual intercourse and genital contact a. 1, 2, 3c. 2, 1, 3

Which is a physical sign of stress? a: unexplained euphoria b: feelings of invincibility c: inability to sleep d: visual hallucinations

Which of the following is not a potential safety hazard to consider when organizing an early childhood outdoor space? a. proximity of restrooms b. nearby traffic patterns c. sun exposure d. standing water