There are four in planning an exercise program.

The world’s richest 20 percent of the population consume about what percentage of all goods and services in a given year?

Exercise has no positive effects on the nervous system? true or falseu

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.