False. They have an open <span>circulatory system</span>
Answer:
Cyanobacteria are responsible for first adding oxygen to the Earth's atmosphere.
Gaseous atoms and plasmic ions expand in all directions.
Answer:
A bacteriophage is a type of virus that attacks bacteria. In the lytic cycle, the virus hijacks the cell machinery of the bacterium that it has infected. In the lysogenic cycle, the viral DNA is incorporated into the bacterial DNA.
Explanation:
Its a type of virus.