Question

both the influenza virus and the protist cell have projections that extend beyond the main structure. how are these projections used differently in viruses and protists? pictures are not to scale. influenza virus protist cell clear all viruses use projections to allow substances to pass through the main structure while protists use projections for protection. viruses use projections to defend against the immune system while protists use projections to eat. viruses use projections to attach to cells while protists use projections to move through their environment. viruses use projections to move throughout their host while protists use projections to attach to other cells.

Explanation:

Viruses use their projections (spikes) mainly to attach to host - cell receptors for infection. Protists, on the other hand, can use projections like cilia or flagella for locomotion to move through their environment.

Answer:

Viruses use projections to attach to cells while protists use projections to move through their environment.