[Solved] Which state of matter consists of particles held together firmly but not rigidly? These particles are held together by strong attractive forces,are in close contact with one another, But are able to flow by one another. A)gas B)liquid C)solid D)vapor Vaccinated: The state of having received a vaccine, which induces an immune response to protect against specific diseases. Influenza: Influenza is a highly contagious viral infection that affects the respiratory system, causing seasonal epidemics and occasional pandemics. Viral Passage: The process by which a virus is grown in cells or organisms over multiple generations, leading to potential changes in its virulence or transmissibility. Morphological Features: Traits or attributes of an organism's form and structure, including shape, size, and arrangement of parts, visible under a microscope or with the naked eye.