Explanation:
polio vaccine was discovered by jonas saulk, 1953. order of events he had to follow / Saulk introduced the 1st vaccine with dead polio virus injected in humans, in 1953. 1st 2 introduce dead virus into humans, proved to be a substantial tool for vaccination of children and adults. proven to work, we use this vaccine today...
Answer:
two couplets with end rhyme
Explanation:
hope this helps :)
merry christmas :)
have a great day :)
brainliest?
The answer is A, there is no clauses in A, making it a simple sentence.
Hope this helps!
Your future goals and aspirations
answer from apex ;)
Huh? we need more description so we can answer your question sorry!
