The average life expectancy in the US has declined for the third year in a row (2015-2016, 2016-2017, 2017-2018). This hasn’t happened since 1915-1918. Why might this be? Create a hypothesis.
(PLEASE ANSWER!!!)

What do you do if you fall over and bend your big toe all the way forwards?

Describe in your own words three purposes of human services.

Which of the following processes within viral replication is the greatest source of genetic variation in rna virus populations? a) high mutation rate due to lack of proofreading of rna genome replication errors.b) transcription from the host cell rna polymerase introduces numerous mutations.c) capsid proteins from the host cell can replace the viral capsid.d) viral rna is translated by host cell ribosomes.