Answer:
<h2>Endangered: Still around but at risk of going extinct (example: tiger)</h2><h2>Extinct: Gone forever (example: wooly mammoth)</h2>
Explanation:
An endangered species is one with a reduced population. These species can easily become extinct if all the remaining members die.
<h2>I'm always happy to help :)</h2>
It will all make more sense if you start from the beginning of the sequence with the structure of DNA. You will remember that messenger RNA contains a sequence of bases which, read three at a time, code for the amino acids used to make protein chains. Each of the sets of three bases is known as a codon.