True or false? the first vaccine developed was for polio. b. false 2. true or false? louis pasteur developed a rabies vaccine.

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The smallpox vaccine, introduced by Edward Jenner in 1796, was the first successful vaccine to be developed. hence first statement is False.

Louis Pasteur developed a vaccine for Rabies hence, the second statement is true.

However, Pasteur's rabies vaccine represented the first effective post-exposure treatment for people bitten by rabid animals, and Jenner's smallpox vaccine resulted in the eradication of smallpox. Additionally, the polio vaccine, given since its discovery in 1950, is resulting in the eradication of polio (in the years 2004–2005). Despite the existence of a relatively powerful vaccine, efforts to completely eradicate rabies are impractical because, unlike smallpox and polio, rabies may infect both domesticated and wild mammalian species.

Learn more about Smallpox here-

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Structure that forms along the lining of the uterus as the embryo implants

tester [92]

Answer:

Blastocyst is a structure that subsequently forms the embryo during the process of fertilization.

Explanation:

In the "innermost layer of the uterine wall" there is endometrium layer, this is where the uterus does the embryo implant.

The blastocyst stage is the period of embedding the "lining of the uterus".
But the fertilization of egg is done in the "Fallopian tube" and is later implanted in the uterus.