Viruses are not always classified as living cells because they cannot live independently. They rely on a host to provide all resources to live, without a host they are in a dormant, near dead like state. Therefore it has to define a virus as dead or alive as it may or may not have a host.
There should be less bacteria if you are growing it on a petting dish
Ok, I'm not fully sure but answer B sound right, so I think it's right
It's A, because it's always important to drink water. If you think about it, all the other answers seem invalid.
Explanation:
For transverse waves, the waves move in perpendicular direction to the source of vibration. For longitudinal waves, the waves move in parallel direction to the source of vibration . They are similar in the sense that energy is transferred in the form of waves.
