Ability to focus one's eyes
Answer:
neck circles
Explanation:
tilting your head back could possibly demage your spine and vertebras
An iron supplement would be most recommended for someone suffering from anemia
Smallpox<span> vaccine, the first successful vaccine to be developed, was introduced by Edward Jenner in 1796. He followed up his observation that milkmaids who had previously caught </span>cowpox<span> did not later catch </span>smallpox<span> by showing that inoculated</span>cowpox<span> protected against inoculated </span>smallpox<span>.</span>
The answer is with orifices.
