MCQ
Copper$-T$ is a device that prevents:
- ✓Fertilisation
- BImplantation of blastocyst
- CEgg maturation
- DOvulation
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$(i)$ Fleming, Chain and Florey were awarded the Nobel prize in $1945$
$(ii)$ Antibiotics have greatly improved our capacity to treat deadly diseases
$(iii)$ Penicillin was used to treat American soldiers wounded in World War I