Which muscle that positions the pectoral girdle is a large muscle that covers the back and portions of the neck, inserts on the clavicle and scapula, and has varied actions, due to the fact that specific regions can be made to contract independently?

Which of the following will abstinence most likely to improve? a.creativity b.physical strength c.flexibility d.emotional health

Explain the difference between the james-lange and the cannon-bard theories of emotion. answer - the cannon-bard theory proposes that emotions and arousal occur at the same time. the james-lange theory proposes the emotion is the result of arousal. schachter and singer's two-factor model proposes that arousal and cognition combine to create emotion.

Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides.b) replication of their genomes does not involve proofreading.c) rna viruses can incorporate a variety of nonstandard bases.d) rna viruses are more sensitive to mutagens.