List the various mechanisms viruses employ to evade the host immune system. A) Viruses use several different mechanisms to evade host immunity. They can mutate their outer surface proteins to evade neutralizing antibody, they can adopt a latent lifecycle, they can express proteins very close or identical in sequence to host proteins in order to elicit an autoimmune response, they can express soluble antigens to bind up circulating antibodies, they can interfere or inactive cytokine signaling, they may inactivate immune cells, and they can block the triggering of apoptosis. B) Viruses use

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.