How genes are able to produce an organisms traits

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone

Describe the structure of a virus, and explain how this structure differs from that of a cell.