MCQ
The biological agents of disease include
- AMinerals, vitamins, proteins and carbohydrates
- ✓Viruses, bacteria, fungi, helminths and other organisms
- CHeat, cold, humidity pressure, radiations
- DAll the above
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$I$. They inhibit ovulation and implantation
$II$. They alter the quality of cervical mucous to prevent or retard the entry of sperms
$III$. They prevent the ejaculated semen from entering the female vagina
$IV$. They inhibit spermatogenesis
Reason : If several spermatozoa hit the egg at same time, all can enter the egg.