Match each method of contraception to the way it works: (a) condom, (b) hormone pill, (c) copper-T…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Match each method of contraception to the way it works: (a) condom, (b) hormone pill, (c) copper-T, (d) blocking the vas deferens. Which one also lowers the risk of sexually transmitted diseases?
Need a reminder? The key ideaShow
Sexually transmitted diseases include gonorrhoea, syphilis, warts and HIV-AIDS; a condom reduces their spread. Contraception: barriers, hormone pills, a loop or copper-T, and surgery. Sex ratio ; finding the sex of a child before birth is banned by law.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Condom. A barrier: sperm cannot reach the egg.
Step 2. Hormone pill. Changes the hormone balance, so eggs are not released.
Step 3. Copper-T. A device placed in the uterus to prevent pregnancy.
Step 4. Blocking the vas deferens. Surgery: sperm cannot pass out.
Answer: as above; the condom also lowers the risk of sexually transmitted diseases.
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