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🔬 Biology  ·  Reproductive Health  ·  NEET

Which disease is caused by HIV and weakens the immune system?

Answer: AIDS.

  • A Hepatitis B
  • B Syphilis
  • C Gonorrhoea
  • D AIDS

Correct answer: D. AIDS

Explanation: AIDS (Acquired Immunodeficiency Syndrome) is caused by HIV (Human Immunodeficiency Virus) which destroys CD4<sup>+</sup> T cells, weakening the immune system.

Contraceptive Methods by CategoryNaturalabstinence,withdrawalBarriercondom (alsoblocks STIs)IUDCuT, LippesloopHormonalpills, injectables,implantsSurgicalvasectomy,tubectomyEffectiveness and permanence generally increase left→right; only barrier methods stop STI transmission

Contraceptive methods span a spectrum from temporary/natural to permanent/surgical; condoms stand out as the only method offering STI protection alongside contraception.

Concept context

Understand reproductive health, family planning, contraception methods, STIs, population control, and assisted reproductive technologies.

Read the full Reproductive Health notes →