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How do Organisms Reproduce?
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16/10/2021 11:38 am
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(a) What substances are contained (i) in oral pills, and (ii) in vaginal pills, used as contraceptives? How do they work?
(b) How does copper-T prevent pregnancy?
(c) Name the disease caused by HIV.
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16/10/2021 11:39 am
(a) (i) The oral pills contain hormones which stop the ovaries from releasing ovum into the oviduct.
(ii) The vaginal pills contain the chemicals called spermicides which kill the sperm.
(b) Copper- T is effective in preventing pregnancy. It is placed inside the uterus and it prevents the flow of sperms in the uterus.
(c) AIDS.