Cardiac muscles are held in place by which of the following? O Capillary network
O Intercalated disks
O Contrictile forces
O Connective tissue fibers

Wjat are substances intentionally added to food to produce a desired effect?

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.

What else happens in your cadriovascular in resonse to your sypathetic nervouse system?