Which of the following is an example of eustress A. Death of a family member B. Loss of a job C. Pregnancy D. Taking an exam E. Terminal illness

Which of these is most likely to prevent pregnancy? a. tracking of female body temperature to identify ovulation times b. proper condom use c. male withdrawal before ejaculation d. proper spermicide use

Group of genes that encode molecules found in all body cells, creating a biochemical “fingerprint” that serves as the “id” for cells so that they are marked as “self” a) deoxyribonucleic acid (dna) b) entry inhibitors c) major histocompatibility complex (mhc) d) non-nucleoside reverse transcription inhibitors (nnrtis)

The nutrient facts label on a food package lists the following: iron 50%. what does this figure indicate?