C. No one knew germs existed
Therefore diseases spread because they did not know how to prevent them and they did not have good hygiene.
In systole, you should expect that your mitral valve and tricuspid valve to be closed (snap shut) and you should expect your pulmonary valve and aortic valve to open. Hope this helps
Answer:The vagina and the penis are the last passageway out of the reproductive system.
The testes and the ovaries perform similar function.
The Sperm duct and the Fallopian tube perform similar function
Explanation:The penis is the exit out of the male reproductive system,it is through the penial opening that seminal fluid leaves the male reproductive system into a female vagina during coupulation.
The testes is the home for the production of the male spermatozoa while the ovaries contains the ovules( the (sex cell).
The Sperm duct does the job of transportation of the seminal fluid as the Fallopian tube also transports the fertilized egg for implantation.
Answer:
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Explanation
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