HI Mate! The right answer is vascular tissue!
So we can protect ourselves from the same virus if it attacks again in the future
Answer:
If the Earth suddenly had no gravity, the Earth’s atmosphere would float into space. Everything not attached to the Earth would fly off into space. Things like trees and most buildings would remain because they are rooted. Since the Earth, itself, is held together by gravity, it would most probably break apart into chunks and float off.
Explanation:
Multiple sites on the DNA during DNA replication allow the process to happen much faster than it would with a single site.
