Each upward movement of the basilar membrane causes the stereocilia of the inner hair cells to bend, opening K+ gates.
The petal would be dead. The petal as a whole is dead, but the cells within it are more or less still alive for the meantime as they don't die immediately after being plucked.
So, your answer would be that The petal is dead.
A I believe, hope it helps.
As cold and flu viruses are thought to be passed from person to person by contact with respiratory droplets, one way that they can be spread is by direct bodily contact.
The answer is B they are acquired through exposure to mutagens.