Answer:
A-Antibodies protect us from getting the exact same virus twice
Explanation:
This one would be amplitude. The reason is because amplitude is the distance from the center of the wave to the farthest point on the wave. So, if the amplitude of a wave is, say, 5m, the distance between the center of the wave and the top (or bottom) would be 5 meters. And to find the total height, just double the amplitude.
Answer:
1 pretty sure its A and 2 i think its B
Explanation:
By water and eggs took the test on edge it’s B