Aids is one of the disease that damage little by little the immune system until the human body die.
practice with people (parents, friends, siblings) and ask them to ask questions during it so you can learn how to keep focus and memorization, or practice in front of stuffed animals. read it out loud on recording, then practice saying it with the recording without the words in front of you. you'll do great! :)
Be sessile (move from place to place very slowly, or not move at all)
I only have one reason but hope it helps!
Because without those bases pairing there <span>would be no structure of a DNA.</span>
Answer: [B]: "proteins" .
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