Examlex
A strand of DNA is a polymer of nucleotides held together by hydrogen bonds. True or False?
Barrier Methods
Forms of contraception that physically block sperm from reaching an egg, such as condoms or diaphragms.
Diaphragm
A dome-shaped, flexible barrier that covers the cervix to prevent sperm from entering the uterus, used as a contraceptive method.
Birth Control Shot
An injectable, hormonal method of birth control that is used to prevent pregnancy for 12 weeks.
Implanon
A brand of contraceptive implant that releases a hormone to prevent pregnancy, inserted under the skin of a woman's upper arm.
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