Answer:
A-Antibodies protect us from getting the exact same virus twice
Explanation:
One of the 4 layers that surrounds the earth.
Answer:
a. A natural geological challenge that exists in my environment is a fault zone known as the San Andreas Fault. It's a major geological landmark where two tectonic plates meet in California. People in my area are prepared for the event of an earthquake by packing emergency clothes, food, water, shelter, etc. in the event of a major earthquake. Scientists believe that California is past due for a major earthquake in the 6.0-8.0 range that could happen any day now. Hope this helps :)
Explanation:
"<span>The bacteria can cut the viral DNA at its specific restriction site but protect their own chromosomal DNA by modifying its bases and blocking the restriction enzyme" is the one explanation to the statement given in question. The correct option among all the options that are given in the question is the second option.</span>