Jonas Salk<span> </span><span>was an American </span>medical researcher<span> and </span>virologist<span>. He discovered and developed one of the first successful </span>polio vaccines in the 1950's.
Hope I helped. :)
Answer is 3. monique should only use the first sample
Weapons = Yes
Journal = No
Maps = No
Bones = Yes
<em>Archaeologists study bones and the things that early humans made such as pottery and weapons.</em>
<em>Archaeologists study early humans by digging up and studying the traces of early settlements.</em>
<em>They dig for fossils or artifacts to figure out what early humans used for tools or their culture or how the shape of their bones.</em>
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<em>I hope this helps!</em>
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