The answer is D. parents do not have a qualification
Answer:
The blood picks up co2 and also waste from the tissue. So I am guessing that it is co2.
Hope this helps.
<span>sending more vibrations directly to the cochlea
</span>
Answer:
True
Explanation:
Not only does addiction to anything wreak havoc on the body, but many times when you are addicted you may fall into a depression upon other things, due to withdrawal. Therefore its true.
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>
