Which is the most effective and safe plan to gain muscle and keep it: А. Meal replacement products
B. Diet pills
C. Supplements
D. Balanced diet

What is the main causes of gray hairs and balding? write your answer in 2 paragraphs

What is psychological dimensions? (meaning)

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.